researchers say anything above 5 parts per billion is cause for concern. after flint's water switch, 10% of homes had more than 11 parts per billion. in one house, researchers from virginia tech found lead levels of 13,200, more than twice what the e.p.a. considers toxic waste. flint has switched back to its original water source, but governor rick schneider says fixing the damaged pipes will cost at least $55 million. so far federal aid is limited to $5 million. >> adriana diaz with the emergency water ration there in flint. the "cbs overnight news" will be right back.

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can help prevent some birth defects before you even know you're pregnant. two weeks until the iowa caucuses and as often the races are narrowing. trump and cruz are in a virtual tie. clinton is only slightly ahead of sanders. we have two reports tonight and we're going to turn first to nancy cordes. nancy? >> reporter: scott, in a heated debate in south carolina, clinton depicted sanders as a harsh critic of the commander- in-chief, aligning herself closely with a president who is still broadly popular in his own party. >> senator sanders called him "weak," "disappointing." >> reporter: clinton argued sanders would upend the president's proudest achievement, obamacare. >> to tear it up and start over again, pushing our country back into that kind of a contentious

debate i think is the wrong direction. >> we're not going the tear up the affordable care act. i helped write it. but we are going to move on top of that to health care for all. >> reporter: the tension in this once-genteel race is the direct result of polls that show a tie in iowa. secretary clinton seemed to be arguing that she is the rightful heir to president obama. >> there is no heir to anybody. look, i have supported barack obama in his election effort, his reelection efforts and almost all of the initiatives he's had out there. he's a friend of mine. but we got to stand up on our own two feet. >> reporter: i'm major garrett in washington. the ongoing feud between republican front-runners donald trump and ted cruz has grown increasingly personal. >> he's a nasty guy. nobody likes him. nobody in congress likes him. nobody likes him anywhere once they get to know him. >> donald seems to be a little rattled.

for whatever reason, he is very, very dismayed. >> reporter: cruz said being disliked in washington is a badge of honor. >> reporter: at liberty university, a conservative christian college, trump courted the same evangelical voters cruz has pursued. >> two corinthians, 3:17, that's the whole ballgame. where the spirit of the lord right, where the spirit of the lord is, there is liberty. is that the one you like? i think that's the one you like because i loved it. >> reporter: the standard christian citation is second corinthians, not "two" corinthians. on the stump, cruz sites scripture much more readily, even so, trump runs competitively with cruz among evangelical christians in iowa. >> major garrett, thank you.

today british lawmakers debated whether trump should be banned from britain. there is a law there against hate speech and half a million britons signed a petition condemning trump after he proposed banning muslims from entering the u.s. here's mark phillips. >> reporter: donald trump has long been seen as a brash american curiosity in britain, even back when he was promising to invest millions in scottish golf resorts. then his critics included michael ford, who was refusing to sell the great deal maker his farm. >> what are you prepared to tell him? >> he's fired. >> reporter: but not as fired as he would be by the petition, which called for him to be banned from britain. >> unacceptable behavior. >> reporter: that triggered this debate within a parliamentary committee, which asked one essential question: >> is this the kind of man that we want in our country? his words are not comical. his words are not funny.

his words are poisonous. his policy to close borders if he is elected president is bonkers. >> reporter: donald trump is free to be a fool, but he's not free to be a dangerous fool in britain. >> reporter: but should the response be to ban him or to invite him to come? >> i'd take him to the synagogue. i'd take him to the church. i'd take him to the mosque. i'd invite him for a curry. >> reporter: donald trump has done in britain what he's done at home, become the news. >> thank you all very much. >> reporter: there's another worry, that donald trump could one day be landing in britain on air force one and that this debate could help his cause. paul flynn led the argument. >> we shouldn't give him the privilege of being banned. we don't want to see him emerge with a halo of victimhood on his head and say, "look what these brits have done to me," you know? >> reporter: in the end, scott, the brits did nothing. the committee has no powers to ban anybody. but donald trump has received

another invitation from the leader of the main opposition party here, who has asked him to come to his electoral district, visit a mosque and meet his wife, who is mexican. >> mark phillips reporting tonight from the houses of parliament. mark, thank you. in health news tonight, there is a growing outbreak of a mosquito-borne virus that is linked to birth defects. travel warnings are going up and last week the first u.s. case of a baby infected in the womb was reported in hawaii. dr. jon lapook has more. >> reporter: christine arce-yee was looking forward to one last getaway before the birth of her first child. then she heard about the danger zika virus might pose to pregnant women.hs/ >> i read an article about zika spreading into the caribbean. i thought, oh, my god, is it in aruba, because i can't take that risk. >> reporter: the c.d.c. is advising pregnant women to avoid travel to 14 countries and

territories in latin america and the caribbean, including puerto rico, mexico and haiti. dr. nikos vasilakis is a virologist at the university of texas medical branch. >> we do not need to scare people, but we need to be able to educate them to be able for themselves to make rational decisions. >> reporter: the mosquito-borne illness has been linked to a condition called microcephaly, an abnormally small head and underdeveloped brain at birth. in 2015 as zika infections spiked in brazil, more than 3,500 women there had babies born with the condition, that's compared with a previous average of 163 a year. >> the zika infections have gone from asia, africa to south america, and it's only matter of time it seems before it makes its way up to north america. >> you're correct on this. this is a consequence of the jet age. this is life in the 21st century. >> reporter: zika symptoms

include fever, rash and joint pain and usually resolve within a week or so. there is no vaccine and no specific anti-viral medication. so brazilian officials are focusing on eradicating mosquitoes and educating the public on how to prevent mosquito bites. >> and i want to point out the infection in hawaii was in a woman who had traveled from brazil. dr. jon lapook, thanks very much. a lack of diversity has led to an oscar boycott. and, we'll remember glenn frey, the co-founder of the eagles, enough pressure in here for ya? ugh. my sinuses are killing me. yeah...just wait 'til we hit ten thousand feet. i'm gonna take mucinex sinus-max. too late, we're about to take off. these dissolve fast. they're new liquid gels. and you're coming with me... wait, what?! you realize i have gold status? do i still get the miles? new mucinex sinus-max liquid gels.

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some important names in hollywood said that they are boycotting the oscars today. because none of the 20 nominated actors is african-american. mireya villarreal has that. >> i will not be at the academy awards, and i won't be watching. >> reporter: actress and director jada pinkett-smith says she intentionally chose to announce her boycott of the oscars on martin luther king's birthday. >> begging for acknowledgment or even asking diminishes dignity and diminishes power, and we are a dignified people. >> reporter: pinkett-smith is part of a growing outcry in hollywood against the academy's decision not to nominate any actors of color this year

despite a number of critically acclaimed performances by african-american actors. today director spike lee said he would join the boycott, posting on instagram saying, "i would like the media to ask all the white nominees and studio heads how they feel about another all- white ballot." academy president cheryl boone isaacs. >> i hope this isn't discouraging for anybody and for filmmakers in particular. >> reporter: oscar nominees are chosen by a 6,200 member voting body, 94% who are white, 74% male. urban and pop culture professor todd boyd says the oscar nominations are the symptom of a bigger problem. >> there is only a small number of people in hollywood who can say yes. until the people in hollywood who can say yes are more reflective of the population as a whole, this is not going to change. >> reporter: "straight out of compton" producer ice cube gave his take on "the daily show." >> we didn't make that movie for the oscars. we made it for the people, and the people loved it.

>> reporter: scott, the academy says they are looking to become more diverse, inviting 300 new members of color to their ranks, although that number is a small fraction of the 6,000 plus voting body they already currently have. >> mireya villarreal, thanks. and we'll be right back.

late today we learned the co-founder of the eagles, guitarist glenn frey, has died after a long battle with an intestinal illness.

his hits include "hotel california," "life in the fast lane," and this -- ♪ you can't hide your lying eyes ♪ >> frey helped the eagles soar. one of the world's best-selling bands with 150 million albums before the eagles broke up in 1980. frey then turned to acting, notably appearing in "miami vice." >> he's going to jail without us. >> he also began a solo career. ♪ the heat is on >> in 1994, the eagles reunited with their album "hell freezes over." ♪ well, i've been running down the road ♪ >> glenn frey was 67. ♪ take it easy martin luther king had a dream that will never die thanks to some of the people you're about to meet when we come back.

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for many this was a day of public service in memory of martin luther king, jr. someone who knew dr. king very well is determined to keep his dream alive. here's mark strassmann. >> over to your right here is the martin luther king center for non-violence. >> reporter: you want tom houck to give this weekly civil rights tour in atlanta. now 68, he once drove for a king, the leader of the movement. >> we would drive in here as the kids would be upstairs waiting for him to come home, jump all over him and say, "daddy, daddy, daddy." >> reporter: in 1966, houck, a 19-year-old civil rights

volunteer, admired the king family. by chance one day he met them at lunch. >> it was really coretta that made me the accidental driver. >> reporter: he told us the story inside ebenezer baptist, the king family church. >> she said she had a driver that was taking the kids to school but he wasn't working out and could i drive the kids to school. i said i'd be delighted to do that. so she didn't even ask me if i had my license. this is a white kid, okay, we're talking about 1966, driving four black kids around atlanta. >> reporter: dr. king later lobbied to keep houck in the movement and out of vietnam. houck gave us a private tour. >> dr. king's office was a beehive of activity. he was a chain smoker. he smoked two packs of cigarettes a day, which coretta hated. he was a big pool player. he'd have a beer and show us tricks he learned along the way. he was a very kind and a very gentle person. coretta got the first word that

king had died. >> reporter: houck has a dream, to keep this history alive. >> i want people to be involved with what king was about and his vision 365 days a year. this is where martin went to elementary school. >> reporter: behind the wheel he had a front seat on history. mark strassmann, cbs news, atlanta. and that's the "overnight news" for this tuesday. for some of you, the news continues. for others, check back with us a little bit later. from the broadcast center in new york city, i'm scott pelley. ca-- ptions by vitac -- www.vitac.com

this is the "cbs overnight news." welcome to the "overnight news." i'm don dahler. the hunt continues in and around baghdad for three american contractors. reports say the three were abducted during a visit to the home of their interpreter who is also missing. it's not clear whom the men worked for, but two are said to have dual iraqi-u.s. citizenship. they're the first americans kidnapped in iraq in nearly six years. three americans freed in the prisoner swap with iran as part of the nuclear deal continued their recuperation and debriefing at a u.s. military

base in germany. there's no word when they'll return to the united states. elizabeth palmer reports. >> reporter: it took a year and a half, but today, jason rezian was reunited with his family and he says he feels good. "the washington post" tehran reporter also met his bosses from the paper. he was arrested in iran on vague spying charges and jailed in a notorious prison at times in solitary confinement. he was one of three americans flown to europe on a swiss air force jet on sunday night. though his brother ali told us until the eleventh hour the family feared iran would renege on the deal. >> they told him lots of things over the course of 18 months, lots of lies, so until he was there at the airport on the plane with the swiss ambassador, they weren't sure. >> reporter: also on the base today, amir hekmati, a former marine jailed since 2011, was reunited with his family, including sister sara, who had flown overnight from detroit, hardly daring to hope he really was free.

>> i'm in a fog. this is like surreal. i'm so in disbelief and honestly everything just happened so quickly that i don't think it will hit me until i am hugging him. >> reporter: now, at last, she has. also freed in the exchange was saeed abedini, a christian pastor arrested in 2012. there was also a fourth american released but all we know is his name -- nosratollah khosravi roosari. that's all the congressman accompanying the other prisoner's family knew, too. >> we were only told that he was his choice to not leave iran at this time. >> reporter: in texas, two of the seven prisoners released from u.s. jails as part of the exchange. all were charged with violating u.s. sanctions against iran. now they're free. most have decided to stay in america. the three americans' newfound freedom is going to require a

lot of big adjustments and also catching up in all kinds of small ways. for example, amir's sister says when she first talked to him, he didn't even know what a selfie was. donald trump was the hot topic in the british parliament. lawmakers were debating whether to ban trump from great britain over his comments about keeping muslim foreigners out of the united states. the parliament argued but they did not vote. closer to home, trump and his top rival ted cruz continued to trade punches on the campaign trail. major garrett reports. >> reporter: it's politics as usual for donald trump and ted cruz. i guess we could forget all their posing as fundamentally different kinds of candidates. turns out they can throw mud, dredge up opposition research and hurl insults just like, well, just like every other run of the mill politician. >> he was pro choice, he supported partial birth apportion and open to gay marriage. he said i'm a new yorker. >> reporter: ted cruz went after

donald trump's defense of new york values. >> those are what new york values are. they're not iowa values. >> reporter: trump countered that cruz has failed to fully disclose loans from goldman sachs and citigroup. >> he wants to look like robin hood, that he's protecting the people from the banks when he's borrowing money. >> reporter: trump rolled out a new schoolyard attack on his rival. >> he's a nasty guy. nobody likes him. nobody in congress likes him. nobody likes him once they know him. >> reporter: in 2005, cruz backed roberts' confirmation, calling him a brilliant lawyer. >> cruz fought like hell to get justice roberts in there. justice roberts turned out to be an absolute disaster. >> reporter: a super pac backing cruz produced this ad, turning trump's praise of cruz against him.

>> he shouldn't be controversial, because what he's doing isn't right. >> reporter: senator marco rubio also kept ted cruz in his cross hairs. >> i know this, hillary clinton does not want to run against me. >> reporter: rubio is competing against john kasich, chris christie and jeb bush to be the so-called main stream alternative to trump or cruz. christie told voters this wmd that rubio and cruz are one-term senators, just like the president was in 2008. voting again for that level of experience and expecting better results was the definition of insanity. the michigan governor rick snyder is on the defensive after his handling of the water crisis in flint came up at the latest democratic debate. bernie sanders called for his resignation. the water in flint is poisoned with lead. president obama has signed an emergency declaration and the national is distributing bottled water. adriana diaz is there.

>> reporter: we're in the home of a flint resident who says what they really need is clean water. this water used to be brown. frustration over flint's tainted water supply is spilling over. >> flint is now a crime scene. >> reporter: michigan's governor declared a state of emergency over the city's water two weeks ago. but state officials may have known about the problem months earlier because city data showed a spike in lead. during sunday's presidential debate, hillary clinton and bernie sanders blasted the republican governor. >> the population, which is poor in many ways, and majority african-american, has been drinking and bathing in lead contaminated water. and the governor of that state acted as though he didn't really care. >> a man who acts that irresponsibly should not stay in power. >> water is a human right! >> reporter: protesters gathered

outside of flint city hall saturday. michael moore grew up in the city of nearly 100,000 and said president obama's emergency declaration isn't enough. >> it's not just a water crisis, it's a racial crisis. it's a poverty crisis. >> reporter: to save money in 2014, flint stopped paying for water from detroit and tapped into its own river instead. but the river water stripped lead from pipes. since the move, the number of children with high lead levels doubled and ten people have died from legionnaire's disease. >> hard to even cook with now. i'm pouring bottles of water over my meat. >> reporter: since january 9, flint has received 26,000 cases of water. over the weekend, share, partnered with icelandic water, sent 181,000 additional bottles. we spoke to the mayor moments after the president's declaration. >> we didn't deserve what

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the mexican actress kate del castillo has some explaining to do about her relationship with el chapo guzman. she's been summoned to mexico's attorney general next week. she was instrumental in setting up the meeting between el chapo and sean penn. neither face charges in the case. the actor sat down with charlie rose for "60 minutes." >> why does sean penn want to go to mexico to interview a drug lord who has escaped from prison with a notorious reputation for doing terrible things and supplying a lot of drugs to america? what's the point?

>> i think the policy of the war on drugs, which so deeply affects all of our lives, seems not to change. it seems to be so unmovable. and it occurs to me that often because we want to simplify the problem, and we want to look at a black hat and put our resources into focusing on the bad guy and i understand that, i absolutely understand justice and the rule of law. and so i do what i call experiential journalism. i don't have to be the one that reports on the alleged murders or the amount of narcotics that are brought in. i go and i spend time in the company of another human being, which everyone is, and i make an observation and try to parallel that, try to balance that with the focus that i believe we tend to put too much emphasis on.

so when i understood from colleagues of mine that there was a potential for contact with him, it just struck me that i wanted to -- >> to do what, sean? i don't understand that, because clearly drugs are a huge problem in america. there's a huge consumption of drugs in america. it's terrible thing in what it does to our society. but what is going to see him going to do about it other than somehow getting a lot of attention? >> i feel complicit in the suffering that is going on, because i'm not thinking about it every day. i'm not watching these laws that are showing no progression. these rehabilitations that are not happening. so i'm looking the other way. i find that equally complicit with murders in juarez.

>> do you think we demon izell chapo too much? >> i think to over demonize any human being is in ourself interest. like it or not, we're married to him. and like a marriage, you might want a divorce -- >> let me -- >> you've got to look at this person as a person or you're never going to -- if the argument, if all we aim to understand is that this is a very bad person, then let's not understand anything else. >> if you wanted to have a conversation about the policy of the war on drugs -- >> that's right. >> that was the motivating factor with you. >> with the reader. with him, i wanted to sit, observe, ask him questions. and then use that as an anchor into this article. >> what did he say? why did he accept? >> well, i can't read his mind. >> yeah, but you talked to him and you know the characters involved. >> uh-huh.

i would say that, you know, from the conversation that was had, he, in several ways, wanted to be on the record. >> how sean penn came to be on the record with el chapo is a tale. penn knew of a mexican tv and movie star who had caught chapo's attention. kate del castillo had once played a drug lord on television. chapo was a fan. they kept in touch through text and social media. last ago, del castillo and penn met and she agreed to arrange a meeting with el chapo. in october, they traveled by small plane and truck into cartel controlled territory. they were escorted by one of el chapo's sons. >> i was baffled at his will to see us. nonetheless -- >> because you thought he might

be putting himself at risk? >> yeah. we followed the protocols laid out by them in terms of communications and so on. >> so far as you know, you had nothing to do -- you visit had nothing to do with his recapture? >> the thing -- here's the things that we know. we know that the mexican government has -- they've been very humiliated by the original escape. they were clearly very humiliated by the notion that someone found him before they did. well, nobody found him before they did. we're not smarter than the dea or the mexican intelligence. we had a contact upon which we were able to facilitate an invitation that allowed us in. >> what we know now from transcripts of texts released by the mexican government is that el chapo was interested in the actress. he didn't even know who sean penn was.

was it naive of you, naive to believe that you could come to mexico, meet with kate del castillo, and go see el chapo without somebody knowing about it? >> i assumed they knew about it. and i say so in the article. i was -- i was stunned that he would risk our trip. i was stunned. >> el chapo met with them and he agreed to a future meeting, including a formal interview with sean penn eight days later. when the manhunt grew more intense, the face-to-face interview became too risky. instead, penn sent a list of questions and el chapo recorded his answers. the questions were not confrontational. they included el chapo growing up in poverty and who he blamed for the drug problem. >> do you understand that a lot of people would have wanted you, in this conversation, in a sense to see how he would react if you

wanted to hold him accountable for his life? >> uh-huh. >> did you consider that -- >> or it just means that if somebody wants me to ask the questions that they want me to ask -- >> right. >> there's that little problem we run into in life. they're not me. so experiential -- >> just tell me this, did you have no interest? you didn't have any interest in understanding how he justified, felt about, made decisions, organized? >> i have a fascination with all of that. >> penn's rolling stone article is a 10,000 word, sometimes rambling, often gripping account of the el chapo meeting. it was published the day after chapo was recaptured and it quickly became the headline. >> my article should not have made this much noise.

el chapo should not have been this popular a figure to read about. >> he was a figure that people read and talked about before you ever went to mexico. >> i'm well aware of that. >> what about those who say this is his ego, he likes being in the center of this, he's an adventurer, he thinks of himself as a writer in the tradition of hunter thompson with a kind of experiential quality to him, do you accept any of that? >> do i accept people feel that way? >> yeah. >> i absolutely accept that people feel that way. >> are they right? >> no, they're not right. >> on january 8th, they caught him as he attempted still another escape. cha chapo's arrest raised questions whether the actress and actor had been tracked and led the police there. the attorney general claimed they had been "essential."

do you believe the mexican government released this because they wanted to see you blamed and to put you at risk? >> yes. >> they wanted to encourage the cartel to put you in their cross hairs? >> yes. >> are you fearful for your >> no. >> you can see more of charlie's interview on our website, cbsnews.com. the "overnight news" will be right back. your heart loves omega-3s. but the omega-3s in fish oil differ from megared krill oil. unlike fish oil, megared is easily absorbed by your body. megared. the difference is easy to absorb. >> important message for residents age 50 to 85. write down this number now. right now,

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for 45 years now, the question can you tell me how to get to "sesame street" had one answer. go to pbs. starting last weekend, all the first run episodes are on hbo. ♪ can you tell me how to get to sesame street ♪ >> reporter: "sesame street" is taking a detour to the ritzier neighborhood of hbo. from what we know, the show is not going to be markedly different. we understand there is going to be increased budgets, so they may be able to do certain things, but the essence of what makes "sesame street" "sesame street" is going to stay the same. >> reporter: this is what "sesame street" looked like when it made its debut in november of

1969. in terms of production value, it's a far cry from this new bigger version on hbo, which is even a step up from recent years on pbs. >> some of the affects of puppetry might be a little more sophisticated. you can make the argument that "sesame street" has worked for as long as it's been on the air, why tinker with it? but today's kids are a little more sophisticated, they're used to seeing things a little more real on camera. >> did somebody say i needed help? >> hbo's brand right now is adult dram as and comedies and the kind of premium cable off-color stuff that you can get away with. but all of those viewers have children. >> reporter: and more and nor of those children want to watch those shows on tab lets, not tv. >> this is saying to parent it is you subscribe to hbo, you can have your kids watch "sesame street" on the ipad. that's very appealing. >> reporter: as part of hbo's

five-year deal, there will be twice as many shows per season. new episode also air exclusively on hbo. then after a nine-month window, available on pbs. >> but certainly there was value for that for hbo and they believe family also want to watch that programming when available and pay for that. >> the only grouchy thing on "sesame street" is my trash can. >> reporter: just how lucrative this is for hbo remains to be seen. having "sesame street" puts it in competition with netflix and amazon prime. the question is, will children suffer if their parents can't afford hbo? >> like everything in america, we're getting into a chasm between the wealthy and nonwealthy. this is the equivalent of some kids going to a private school and other kids not getting it. >> reporter: still, family also still be able to get to "sesame

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and life can be long lived. director spike lee is asking his colleagues to boycott the upcoming academy awards because for the second year in a row the nominees are white. michelle miller has more. >> reporter: the academy has long been criticized for its white membership. thursday's nominations, along with what critics call the snubbing of stars and others put that lack of diversity into crystal clear focus. 12 oscar nominations pushed the film "the revenant" into the spotlight thursday. but critics say the relevant headline is those who didn't make the cut for hollywood's highest honors. among the biggest snubs for best

picture, "straight out of compton" failed to get a nod, despite grossing more than $200 million worldwide. >> i've got something to say. >> reporter: ice cube is one of the producers. >> it's all good. we didn't make that movie for the oscars, we made it for the people. >> reporter: nominated for a golden globe and a s.a.g. award for a supporting roll for "beasts of no nation" didn't make the cut either. and neither did "concussion's" will smith. >> the lack of non-white people among the nominees is never really the academy's fault, right? it's more the industry's fault. >> reporter: wesley morris is "the new york times" critic at large. >> we're talking about people who have been members of this group of 6,000 people for 50 years. so we're talking like entrenched generations of membership. >> reporter: a 2012 los angeles times study revealed of the

nearly 6,000 voting members, 94% were white and 77% male. the academy president has been vocal on the issue. in june, she inducted a record 322 new members to promote inclusion. she called the lack of diversity in thursday's nominations disappointing. >> i hope this isn't discouraging for anybody and for filmmakers in particular. >> reporter: will this whole issue of diversity follow us through now that the nominations are out? >> chris rock is your host. this was a merry christmas, chris rock. love, the academy. >> reporter: that is right, chris rock is hosting the 88th academy awards next month. the last time chris rock hosted the oscars was in 2005. that year, jamie foxx won for best lead actor and morgan freeman for supporting actor. >> and that's the "overnight news" for this tuesday. for some of you, the news continues.

for others, check back with us a little later for the mong news and "cbs this morning." from the broadcast center in new york city, i'm don dahler. family reunions for american prisoners released by iran. also tonight, michigan's ansr to the flint lead crisis. is it too little? the clinton-sanders race is tightening. >> her campaign says they always knew it would be close. >> yeah, right. >> eagles' guitarist glenn frey has died. ♪ taking it easy and one man's journey to keep the dream alive. >> i want people to be involved with what king was about and his vision. this is the "cbs overnight news." >> the pictures told the story, relief and delight on the faces of three americans released from iranian prison.

they're being examined at the u.s. military hospital in skrermny. a fourth american decided to stay in iran while a fifth, a student, is already back home in massachusetts. they were freed in a secret deal negotiated at the same time that iran agreed to suspend its nuclear arms program. elizabeth palmer begins our coverage. >> reporter: it took a year and a half, but today jason rezaian was finally reunited with his family and he says he feels good. the "washington post" tehran reporter also met his bosses from the paper. he was arrested in iran on vague spying charges and jailed in a notorious prison at times in solitary confinement. he was one of three americans flown to europe on a swiss air force jet on sunday night. though his brother ali told us until the eleventh hour the family feared iran would renege on the deal. >> they told him lots of things over the course of 18 months, lots of lies, so until he was

there at the airport on the plane with the swiss ambassador, they weren't sure. >> reporter: also on the base today, amir hekmati, a former marine jailed since 2011, was reunited with his family, including sister sara, who had flown overnight from detroit, hardly daring to hope he really was free. >> i'm in a fog. this is like surreal. i'm so in disbelief and honestly everything just happened so quickly that i don't think it will hit me until i am hugging him. >> reporter: now, at last, she has. also freed in the exchange was saeed abedini, a christian pastor arrested in 2012. there was also a fourth american released but all we know is his name -- nosratollah khosravi roosari. that's all the congressman accompanying the other prisoner's family knew, too. >> we were only told it was his choice to not leave iran at this time. >> reporter: in texas, these are

two of the seven prisoners released as part of the exchange. all were charged with violating u.s. sanctions against iran. now they're free. most have decided to stay in america. the three americans' newfound freedom is going to require a lot of big adjustments and also catching up in all kinds of small ways. for example, amir's sister says when she first talked to him, he didn't even know what a selfie was. >> liz palmer in germany, liz, thanks very much. the nuclear deal also went into effect this weekend. iran agreed to suspend its program for at least ten years. here's margaret brennan. >> we have now cut off every single path that iran could have used to build a bomb. >> reporter: president obama yesterday hailed the administration's nuclear deal with iran. it went into effect over the weekend after iran made good ahead of schedule on its promise to disable key nuclear

facilities. it transferred 25,000 pounds of atomic fuel to russia, mothballed 12,000 centrifuges which can enrich uranium, and poured concrete enter a plutonium reactor, rendering it useless. u.n. weapons inspectors will now be on the ground watching whether iran cheats. in exchange, the white house lifted sanctions, allowing iran access to $100 billion in assets. iranian businesses are no longer locked out of global markets. iran's ships are free to sail into foreign ports, and it can buy or sell goods like oil. today tehran issued an order to immediately pump 500,000 additional barrels of oil a day, a move that could further drive down its price in a market already glutted with too much supply. >> we recognize that there remain profound differences between the united states and iran. reporter: but challenges remain. just last week the iranian military detained ten navy sailors at gunpoint.

iran is still considered a state sponsor of terrorism, and last fall it twice illegally tested ballistic missiles, which can carry nuclear warheads. just after the american prisoners were released sunday, president obama unveiled limited sanctions on iran because of those launches. the white house says the next test will be whether iran helps to end the war in syria, a conflict that it fuels with funds and fighters. scott, at this point there are no plans to reestablish diplomatic relations with tehran, and it is not at all clear what will happen when president obama leaves office. >> margaret brennan at the white house for us tonight. margaret, thank you. tonight the mayor of flint, michigan, is asking for a federal disaster declaration. lead has contaminated the water in the city of 100,000, and adriana diaz is there. >> reporter: all day a steady stream of residents received their ration of clean water from the national guard. >> it's all set. >> reporter: state troopers with

lead tests, filters and bottles fanned across a city that's parched for clean water. >> thank you. >> you're welcome. >> reporter: in april 2014, when flint tapped into its own river for water, it wasn't properly treated, stripping lead from pipes. after the switch, ten people died from legionnaires' disease. flint dr. mona hannah atisha found the number of children with high lead in their systems doubled to nearly 70. >> we see the result at five years of age when they need early intervention and special education. you see the impact at ten years when they're having adhd-like symptoms. and you'll see the impact when they're 15 years old and they're having trouble with the criminal justice system. >> reporter: elena richardson says her children started getting sick after the water switch. >> what happens after the water filter is gone? we're still going to have the lead, we're still going to have the pipes, we're still going to have the poison, we're still going to have the disease. >> reporter: in nearby detroit, where flint used to get its water, 90% of homes have less than 2.3 parts per billion of lead in 2014.

researchers say anything above 5 parts per billion is cause for concern. after flint's water switch, 10% of homes had more than 11 parts per billion. in one house, researchers from virginia tech found lead levels of 13,200, more than twice what the epa considers toxic waste. flint has switched back to its original water source, but governor rick schneider says fixing the damaged pipes will cost at least $55 million. so far federal aid is limited to $5 million. >> adriana diaz with the emergency water ration there in flint. the "cbs overnight news" will be right back. as the late nelson mandela said,

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visit home food safety dot org two weeks until the iowa caucuses and as often the races are narrowing. trump and cruz are in a virtual tie. clinton is only slightly ahead of sanders. we have two reports tonight and we're going to turn first to nancy cordes. nancy? >> reporter: scott, in a heated debate in south carolina, clinton depicted sanders as a harsh critic of the commander- in-chief, aligning herself closely with a president who is still broadly popular in his own party. >> senator sanders called him "weak," "disappointing." >> reporter: clinton argued sanders would upend the president's proudest achievement, obamacare. >> to tear it up and start over again, pushing our country back into that kind of a contentious

debate i think is the wrong direction. >> we're not going to tear up the affordable care act. i helped write it. but we are going to move on top of that to health care for all. >> reporter: the tension in this once-genteel race is the direct result of polls that show a tie in iowa. secretary clinton seemed to be arguing that she is the rightful heir to president obama. >> there is no heir to anybody. look, i have supported barack obama in his election effort, his reelection efforts and almost all of the initiatives he's had out there. he's a friend of mine. but we got to stand up on our own two feet. >> reporter: i'm major garrett in washington. the ongoing feud between republican front-runners donald trump and ted cruz has grown increasingly personal. >> he's a nasty guy. nobody likes him. nobody in congress likes him. nobody likes him anywhere once

they get to know him. >> donald seems to be a little rattled. for whatever reason, he is very, very dismayed. >> reporter: cruz said being disliked in washington is a badge of honor. >> reporter: at liberty university, a conservative christian college, trump courted the same evangelical voters cruz has pursued. >> two corinthians, 3:17, that's the whole ballgame. where the spirit of the lord right, where the spirit of the lord is, there is liberty. is that the one you like? i think that's the one you like because i loved it. >> reporter: the standard christian citation is second corinthians, not "two" corinthians. on the stump, cruz sites scripture much more readily, even so, trump runs competitively with cruz among evangelical christians in iowa. >> major garrett, thank you.

today british lawmakers debated whether trump should be banned from britain. there is a law there against hate speech and half a million britons signed a petition condemning trump after he proposed banning muslims from entering the u.s. here's mark phillips. >> reporter: donald trump has long been seen as a brash american curiosity in britain, even back when he was promising to invest millions in scottish golf resorts. then his critics included michael ford, who was refusing to sell the great deal maker his farm. >> what are you prepared to tell him? >> he's fired. >> reporter: but not as fired as he would be by the petition, which called for him to be banned from britain. >> unacceptable behavior. >> reporter: that triggered this debate within a parliamentary committee, which asked one essential question: >> is this the kind of man that we want in our country? his words are not comical. his words are not funny.

his words are poisonous. his policy to close borders if he is elected president is bonkers. >> reporter: donald trump is free to be a fool, but he's not free to be a dangerous fool in britain. >> reporter: but should the response be to ban him or to invite him to come? >> i'd take him to the synagogue. i'd take him to the church. i'd take him to the mosque. i'd invite him for a curry. >> reporter: donald trump has done in britain what he's done at home, become the news. tland and there's another worry -- that donald trump could one day be landing in britain on air force one and that this debate could help his cause. paul flynn led the argument. >> we shouldn't give him the privilege of being banned. we don't want to see him emerge with a halo of victimhood on his head and say, "look what these brits have done to me," you know? >> reporter: in the end, scott, the brits did nothing.

the committee has no powers to ban anybody. but donald trump has received another invitation from the leader of the main opposition party here, who has asked him to come to his electoral district, visit a mosque and meet his wife, who is mexican. >> mark phillips reporting tonight from the houses of parliament. mark, thank you. in health news tonight, there is a growing outbreak of a mosquito-borne virus that is linked to birth defects. travel warnings are going up and last week the first u.s. case of a baby infected in the womb was reported in hawaii. dr. jon lapook has more. >> reporter: christine arce-yee was looking forward to one last getaway before the birth of her first child. then she heard about the danger zika virus might pose to pregnant women. >> i read an article about zika spreading into the caribbean. i thought, oh, my god, is it in aruba, because i can't take that risk. >> reporter: the cdc is advising pregnant women to avoid travel

to 14 countries and territories in latin america and the caribbean, including puerto rico, mexico and haiti. dr. nikos vasilakis is a virologist at the university of texas medical branch. >> we do not need to scare people, but we need to be able to educate them to be able for themselves to make rational decisions. >> reporter: the mosquito-borne illness has been linked to a condition called microcephaly, an abnormally small head and underdeveloped brain at birth. in 2015 as zika infections spiked in brazil, more than 3,500 women there had babies born with the condition, that's compared with a previous average of 163 a year. >> the zika infections have gone from asia, africa to south america, and it's only matter of time it seems before it makes its way up to north america. >> you're correct on this. this is a consequence of the jet age. this is life in the 21st century. >> reporter: zika symptoms

include fever, rash and joint pain and usually resolve within a week or so. there is no vaccine and no specific anti-viral medication. so brazilian officials are focusing on eradicating mosquitoes and educating the public on how to prevent mosquito bites. >> and i want to point out the infection in hawaii was in a woman who had traveled from brazil. dr. jon lapook, thanks very much. a lack of diversity has led to an oscar boycott. and, we'll remember glenn frey, the co-founder of the eagles. today you can do everything in just one click, even keep your toilet clean and fresh. introducing lysol click gel. click it in to enjoy clean freshness

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some important names in j hollywood said that they are boycotting the oscars today. because none of the 20 nominated actors is african-american. mireya villarreal has that. >> i will not be at the academy awards, and i won't be watching. >> reporter: actress and director jada pinkett-smith says she intentionally chose to announce her boycott of the oscars on martin luther king's birthday. >> begging for acknowledgment or even asking diminishes dignity and diminishes power, and we are a dignified people. >> reporter: pinkett-smith is part of a growing outcry in hollywood against the academy's decision not to nominate any

actors of color this year despite a number of critically acclaimed performances by african-american actors. today director spike lee said he would join the boycott, posting on instagram saying, "i would like the media to ask all the white nominees and studio heads how they feel about another all- white ballot." academy president cheryl boone isaacs. >> i hope this isn't discouraging for anybody and for filmmakers in particular. >> reporter: oscar nominees are chosen by a 6,200 member voting body, 94% who are white, 74% male. urban and pop culture professor todd boyd says the oscar nominations are the symptom of a bigger problem. >> there is only a small number of people in hollywood who can say yes. until the people in hollywood who can say yes are more reflective of the population as a whole, this is not going to change. >> reporter: "straight out of compton" producer ice cube gave his take on "the daily show." >> we didn't make that movie for the oscars. we made it for the people, and the people loved it.

>> reporter: scott, the academy says they are looking to become more diverse, inviting 300 new members of color to their ranks, although that number is a small fraction of the 6,000 plus voting body they already currently have. >> mireya villarreal, thanks. and we'll be right back.

late today we learned the co-founder of the eagles, guitarist glenn frey, has died after a long battle with an intestinal illness.

his hits include "hotel california," "life in the fast lane," and this -- ♪ you can't hide your lying eyes ♪ >> frey helped the eagles soar. one of the world's best-selling bands with 150 million albums before the eagles broke up in 1980. frey then turned to acting, notably appearing in "miami vice." >> he's going to jail without us. >> he also began a solo career. ♪ the heat is on >> in 1994, the eagles reunited with their album "hell freezes over." ♪ well, i've been running down the road ♪ >> glenn frey was 67. ♪ take it easy martin luther king had a dream that will never die thanks to some of the people you're about to meet when we come back.

for many this was a day of public service in memory of martin luther king, jr. someone who knew dr. king very well is determined to keep his dream alive. here's mark strassmann. >> over to your right here is the martin luther king center for non-violence. >> reporter: you want tom houck to give this weekly civil rights tour in atlanta. now 68, he once drove for a king, the leader of the movement. >> we would drive in here as the kids would be upstairs waiting for him to come home, jump all over him and say, "daddy, daddy, daddy." >> reporter: in 1966, houck, a 19-year-old civil rights volunteer, admired the king family.

by chance one day he met them at lunch. >> it was really coretta that made me the accidental driver. >> reporter: he told us the story inside ebenezer baptist, the king family church. >> she said she had a driver that was taking the kids to school but he wasn't working out and could i drive the kids to school. i said i'd be delighted to do that. so she didn't even ask me if i had my license. this is a white kid, okay, we're talking about 1966, driving four black kids around atlanta. >> reporter: dr. king later lobbied to keep houck in the movement and out of vietnam. houck gave us a private tour. >> dr. king's office was a beehive of activity. he was a chain smoker. he smoked two packs of cigarettes a day, which coretta hated. he was a big pool player. he'd have a beer and show us tricks he learned along the way. he was a very kind and a very gentle person. coretta got the first word that king had died.

>> reporter: houck has a dream, to keep this history alive. >> i want people to be involved with what king was about and his vision 365 days a year. this is where martin went to elementary school. >> reporter: behind the wheel he had a front seat on history. mark strassmann, cbs news, atlanta. and that's the "overnight news" for this tuesday. for some of you, the news continues. for others, check back with us a little bit later. from the broadcast center in new york city, i'm scott pelley. -- captions by vitac -- www.vitac.com

this is the "cbs overnight news." welcome to the "overnight news." i'm don dahler. the hunt continues in and around baghdad for three american contractors missing and presumed kidnapped since last friday. iraqi security forces have set up road blocks and are going door to door searching for any reports say the three were abducted during a visit to the home of their interpreter who is also missing. it's not clear whom the men worked for, but two are said to have dual iraqi-u.s. citizenship. so far no group has claimed responsibility. they're the first americans kidnapped in iraq in nearly six years. three americans freed in the prisoner swap with iran as part of the nuclear deal continued their recuperation and debriefing at a u.s. military base in germany. there's no word when they'll return to the united states.

elizabeth palmer reports. >> reporter: it took a year and a half, but today, jason rezian was reunited with his family and he says he feels good. "the washington post" tehran reporter also met his bosses from the paper. he was arrested in iran on vague spying charges and jailed in a notorious prison at times in solitary confinement. he was one of three americans flown to europe on a swiss air force jet on sunday night. though his brother ali told us until the eleventh hour the family feared iran would renege on the deal. >> they told him lots of things over the course of 18 months, lots of lies, so until he was there at the airport on the plane with the swiss ambassador, they weren't sure. >> reporter: also on the base today, amir hekmati, a former marine jailed since 2011, was reunited with his family, including sister sara, who had flown overnight from detroit, hardly daring to hope he really

was free. >> i'm in a fog. this is like surreal. i'm so in disbelief and honestly everything just happened so quickly that i don't think it will hit me until i am hugging him. >> reporter: now, at last, she has. also freed in the exchange was saeed abedini, a christian pastor arrested in 2012. there was also a fourth american released but all we know is his name -- nosratollah khosravi roosari. that's all the congressman accompanying the other prisoner's family knew, too. >> we were only told it was his choice to not leave iran at this time. >> reporter: in texas, two of the seven prisoners released from u.s. jails as part of the exchange. all were charged with violating u.s. sanctions against iran. now they're free. most have decided to stay in america.

the three americans' newfound freedom is going to require a lot of big adjustments and also catching up in all kinds of small ways. for example, amir's sister says when she first talked to him, he didn't even know what a selfie was. donald trump was the hot topic in the british parliament. lawmakers were debating whether to ban trump from great britain over his comments about keeping muslim foreigners out of the united states. the parliament argued but they did not vote. closer to home, trump and his top rival ted cruz continued to trade punches on the campaign trail. major garrett reports. >> reporter: it's politics as usual for donald trump and ted cruz. i guess we could forget all their posing as fundamentally different kinds of candidates. turns out they can throw mud, dredge up opposition research and hurl insults just like, well, just like every other run of the mill politician. >> he was pro choice, he supported partial birth apportion and open to gay marriage. and his explanation for all that, he said i'm a new yorker.

>> reporter: ted cruz went after donald trump's defense of new york values. >> those are what new york values are. they're not iowa values. >> reporter: trump countered that cruz has failed to fully disclose loans from goldman sachs and citigroup. arguing that help from new york banks make his closest rival a hypocrite. >> he wants to look like robin hood, that he's protecting the people from the banks when he's borrowing money. >> reporter: trump rolled out a new schoolyard attack on his rival. >> he's a nasty guy. nobody likes him. nobody in congress likes him. nobody likes him once they know him. >> reporter: and he was critical of cruz's support for supreme court justice john roberts. in 2005, cruz backed roberts' confirmation, calling him a brilliant lawyer. >> cruz fought like hell to get justice roberts in there. justice roberts turned out to be an absolute disaster. >> reporter: a super pac backing cruz produced this ad, turning trump's praise of cruz against him. >> he shouldn't be

controversial, because what he's doing isn't right. >> reporter: senator marco rubio also kept ted cruz in his cross hairs, calling the texas senator a flip-flopper. >> i believe i'm the only one that can unite the republican party. i know this, hillary clinton does not want to run against me. >> reporter: rubio is competing against john kasich, chris christie and jeb bush to be the so-called main stream alternative to trump or cruz. chrissie told voters this weekend that rubio and cruz are one-term senators, just like the president was in 2008. voting again for that level of experience and expecting better results was the definition of insanity. the michigan governor rick snyder is on the defensive after his handling of the water crisis in flint came up at the latest democratic debate. bernie sanders called for his resignation. the water in flint is poisoned with lead. president obama has signed an emergency declaration and the national is distributing bottled water. adriana diaz is there. >> reporter: we're in the home of a flint resident who says

what they really need is clean pipes. this tap water used to be brown. it now looks and smells fine, but the corroded pipes still make it unsafe to drink. frustration over flint's tainted water supply is spilling over. >> flint is now a crime scene. >> reporter: michigan's governor declared a state of emergency over the city's water two weeks ago. but state officials may have known about the problem months earlier because city data showed a spike in lead. during sunday's presidential debate, hillary clinton and bernie sanders blasted the republican governor. >> the population, which is poor in many ways, and majority african-american, has been drinking and bathing in lead contaminated water. and the governor of that state acted as though he didn't really care. >> a man who acts that irresponsibly should not stay in power. >> water is a human right! >> reporter: protesters gathered outside of flint city hall

saturday. michael moore grew up in the city of nearly 100,000 and said president obama's emergency declaration isn't enough. >> it's not just a water crisis, it's a racial crisis. it's a poverty crisis. >> reporter: to save money in 2014, flint stopped paying for water from detroit and tapped into its own river instead. but the river water stripped lead from pipes. since the move, the number of children with high lead levels doubled and ten eople have died from legionnaire's disease. the city has since reversed the switch, but the water is still unsafe. >> hard to even cook with now. i'm pouring bottles of water over my meat. >> reporter: since january 9, flint has received 26,000 cases of water. over the weekend, share, partnered with icelandic water, sent 181,000 additional bottles. we spoke to the mayor moments after the president's declaration. >> we didn't deserve what happened, but we do deserve this type of response.

the "cbs overnight news" will be right back. your clever moves won't stop the cold and flu.

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the mexican actress kate del castillo has some explaining to do about her relationship with captured drug lord joaquin el chapo guzman. she's been summoned to mexico's attorney general next week. she was instrumental in setting up the interview between el chapo and actor sean penn, which mexican authorities say helped lead to his arrest. neither face charges in the case. the actor sat down with charlie rose for "60 minutes." >> why does sean penn want to go to mexico to interview a drug lord who has escaped from prison with a notorious reputation for doing terrible things and supplying a lot of drugs to america? what's the point? >> i think the policy of the war

on drugs, which so deeply affects all of our lives, seems not to change. it seems to be so unmovable. and it occurs to me that often because we want to simplify the problem, and we want to look at a black hat and put our resources into focusing on the bad guy and i understand that, i absolutely understand justice and the rule of law. and so i do what i call experiential journalism. i don't have to be the one that reports on the alleged murders or the amount of narcotics that are brought in. i go and i spend time in the company of another human being, which everyone is, and i make an observation and try to parallel that, try to balance that with the focus that i believe we tend to put too much emphasis on.

so when i understood from colleagues of mine that there was a potential for contact with him, it just struck me that i wanted to -- >> to do what, sean? i don't understand that, because clearly drugs are a huge problem in america. there's a huge consumption of drugs in america. it's terrible thing in what it does to our society. but what is going to see him going to do about it other than somehow getting a lot of attention? >> i feel complicit in the suffering that is going on, because i'm not thinking about it every day. i'm not watching these laws that are showing no progression. these rehabilitations that are not happening. so i'm looking the other way. i find that equally complicit with murders in juarez.

>> do you think we demonize el chapo too much? >> i think to over demonize any human being is not in our self-interest. like it or not, we're married to him. and like a marriage, you might want a divorce -- >> let me -- >> you've got to look at this person as a person or you're never going to have -- >> or if the argument -- >> or if all we aim to understand is that this is a very bad person, then let's not understand anything else. >> if you wanted to have a conversation about the policy of the war on drugs -- >> that's right. >> that was the motivating factor for you? >> with the reader. with him, i wanted to sit, observe, ask him questions. and then use that as an anchor into this article. >> what did he say? why did he accept? >> well, i can't read his mind. >> yeah, but you talked to him and you know the characters involved.

>> uh-huh. i would say that, you know, from the conversation that was had, he, in several ways, wanted to be on the record. >> how sean penn came to be on the record with el chapo is a tale. penn knew of a mexican tv and movie star who had caught chapo's attention. kate del castillo had once played a drug lord on television. chapo was a fan. they kept in touch through text and social media. last august, del castillo and penn met and she agreed to arrange a meeting with el chapo. in october, they traveled by small plane and truck into cartel controlled territory. they were escorted by one of el chapo's sons. >> i was baffled at his will to see us. nonetheless -- >> because you thought he might

be putting himself at risk? >> yeah. we followed the protocols laid out by them in terms of communications and so on. >> so far as you know, you had nothing to do -- your visit had nothing to do with his recapture? >> the thing -- here's the things that we know. we know that the mexican government has -- they've been very humiliated by the original escape. they were clearly very humiliated by the notion that someone found him before they did. well, nobody found him before they did. we're not smarter than the dea or the mexican intelligence. we had a contact upon which we were able to facilitate an invitation that allowed us in. >> what we know now from transcripts of texts released by the mexican government is that el chapo was interested in the actress. he didn't even know who sean penn was.

was it naive of you, naive to believe that you could come to mexico, meet with kate del castillo, and go see el chapo without somebody knowing about it? >> i assumed they knew about it. and i say so in the article. i was -- i was stunned that he would risk our trip. i was stunned. >> el chapo met with them and he agreed to a future meeting, including a formal interview with sean penn eight days later. when the manhunt grew more intense, the face-to-face interview became too risky. instead, penn sent a list of questions and el chapo recorded his answers. the questions were not confrontational. they included el chapo growing up in poverty and who he blamed for the drug problem. >> do you understand that a lot of people would have wanted you, in this conversation, in a sense to see how he would react if you wanted to hold him accountable

for his life? >> uh-huh. >> did you consider that -- >> or it just means that if somebody wants me to ask the questions that they want me to ask -- >> right. >> there's that little problem we run into in life. they're not me. so experiential -- >> just tell me this, did you have no interest? you didn't have any interest in understanding how he justified, felt about, made decisions, organized? >> i have a fascination with all of that. >> penn's rolling stone article is a 10,000 word, sometimes rambling, often gripping account of the el chapo meeting. it was published the day after chapo was recaptured and it quickly became the headline. >> my article should not have made this much noise. el chapo should not have been

this popular a figure to read about. >> he was a figure that people read and talked about before you ever went to mexico. >> i'm well aware of that. >> what about those who say this is his ego, he likes being in the center of this, he's an adventurer, he thinks of himself as a writer in the tradition of hunter thompson with a kind of experiential quality to him, do you accept any of that? >> do i accept people feel that way? >> yeah. >> i absolutely accept that people feel that way. >> are they right? >> no, they're not right. >> on january 8th, when the mexican marines finally raided el chapo's hideout as seen in this video, they caught him as he attempted still another escape. chapo's arrest raised questions whether the actress and actor had been tracked and led the mention man -- mexican marines to the drug lord. the attorney general claimed they had been "essential."

do you believe the mexican government released this because they wanted to see you blamed and to put you at risk? >> yes. >> they wanted to encourage the cartel to put you in their cross hairs? >> yes. >> are you fearful for your life? >> no. >> you can see more of charlie's interview on our website, cbsnews.com. the "overnight news" will be right back. the more you sweat degree's motionsense technology keyoeps esu frh with every move. it has unique microcapsules that contain fragrances. friction breaks the capsules... ...releasing bursts of freshness all day. whether you're meeting a deadline... ...grabbing a bite... ...or heading out for the night. motionsense, protection to keep you moving. degree, it won't let you down. it's easy for me cause look at as it is her.him... aw...

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for 45 years now, the question can you tell me how to get to "sesame street" had one answer. go to pbs. starting last weekend, all the first run "sesame street" episodes are on hbo. carter evans has that story. ♪ can you tell me how to get to sesame street ♪ >> reporter: "sesame street" is taking a detour from its pbs home of 4 1/2 decades to the ritzier neighborhood of bo. >> from what we know, the show is not going to be markedly different. we understand there is going to be increased budgets, so they may be able to do certain things, but the essence of what makes "sesame street" "sesame street" is going to stay the same. >> reporter: this is what "sesame street" looked like when it made its debut in november of 1969. in terms of production value,

it's a far cry from this new bigger version on hbo, which is even a step up from recent years on pbs. >> some of the effects of puppetry might be a little more sophisticated. you can make the argument that "sesame street" has worked for as long as it's been on the air, why tinker with it? but today's kids are a little more sophisticated, they're used to seeing things a little more real on camera. >> did somebody say i needed help to save the day? >> hbo's brand right now is adult dramas and comedies and the kind of premium cable off-color stuff that you can get away with. but all of those viewers have children. >> reporter: and more and more of those children want to watch those shows on tablets, not tv. >> this is saying to parent it is you subscribe to hbo, you can have your kids watch "sesame street" on the ipad. that's a very appealing proposition. >> reporter: as part of hbo's five-year deal, there will be

twice as many shows per season. new episodes will air exclusively on hbo. then after a nine-month window, available on pbs. >> but certainly there was value in that for hbo and they believe families will want to watch that programming when available and pay for that. >> the only grouchy thing on "sesame street" is my trash can. >> reporter: just how lucrative this is for hbo remains to be seen. having "sesame street" puts it in a more competitive position against streaming services like netflix and amazon prime. the question is, will children suffer if their parents can't afford hbo? >> like everything in america, we're getting into a chasm between the wealthy and nonwealthy. this is the equivalent of some kids getting to go to a private school whereas other kids not getting it. >> reporter: still, families will be able to get to "sesame

street" through public broadc where you headed?

uh just gonna hang out. it's a school night. with gary and todd? yea. not sure about those two. i've been meaning to ask you - this is tougher than i thought - is there any drinking going on in this crowd? no. i hope not, because alcohol can lead you to say things and do things you that you really wish you hadn't. isn't this what you're supposed to say? i know. so if any of your buddies ever pressure you to take a drink, just tell them you promised your dad you wouldn't. i'd do anything to keep you safe. ok. i will. i hope this is working. i promise. i love you too dad. they really do hear you. brian? yea? so start the conversation even before they're teenagers. good idea. for tips on what to say visit underagedrinking.samhsa.gov a message from the substance abuse and mental health services administration.

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a fallen comrade behind. . >> the water crisis is a boiling point calls for governors to step down amid the emergency. iowa in sight t. first vote of the 2016 presidential campaign less than two weeks away the contenders if both parties start to draw their battle lines and the outrage over the oscars growth. stars say they'll boycott the awards ceremony over the lack of diversity among the nominees. now changes are coming to the