>> glor: one big step closer to home. americans freed from iran arrive in germany to be reunited with their families. we'll have more on the american killed in a terror attack in west africa. we get the story of another's harrowing escape. in south carolina, presidential candidates clinton, sanders and o'malley face off tonight. global markets sirng further as wall street prepares for another queasy week. plus heavenly harmony. monks bring music back to a century olds monday stas-- monastary while tapping into something very special. >> if you thought the music was di vien, you should try the beer, trust me. >> this is captioning sponsored by cbs this is the "cbs evening news." >> glor: good evening. i'm jeff glor, and this is a western emission of the broadcast. three americans released by iran are in germany tonight. president obama said this weekend's prisoner swap with iran was a victory for american diplomacy.

part of the exchange but was not on the same plane with the others. a fifth american, a student, was also released separately yesterday. following the exchange, the united states and five other world powers lifted economic sanctions on iran and freed billions in frozen assets implementing the landmark new clear deal reached last july. we begin with elizabeth palmer in landstuhl, germany. >> reporter: arriving in geneva on a swiss air force plane late today, the three americans were safe at last. here's jason rezaian, tehran reporter for "the washington post," he's shaking hands with the state department's brett mcgurk who lead negotiations for the release. rezaian was jailed a year and a half ago charged with spying. pastor saeed abedini was arrested in it 2012, alleged to have organized underground christian churches in iran. and amir hekmati, a former u.s. marine was picked up in 2011

and charged with espionage. >> how are you? >> reporter: cbs's adriana diaz caught up with hekmati's sister in detroit as she was boarding a plane to be reunited with her brother. >> i'm in a fog. this is like surreal, i'm still in disbelief and honestly, everything just happened so quickly that i don't think it will hit me until i'm hugging him. >> reporter: all three americans were released from tehran's infamous he vin prison,-- evin prison after 14 months of top secret diplomatic mar gainings that started on the sidelines of the new clear talks. today president obama waited until the americans were out of the iranian airspace before saluting them. >> today we're united in welcoming home sons and husbands and brothers, who in lonely prison cells have endured an absolute nightmare. >> reporter: also free are bahram mechanic and khosrow av gahahi two of the seven prisoners the u.s. released from its jail as part of the swap. all were accused of selling

of american sanctions. and finally, there is a mysteryman, the fourth american prisoner who was released along with the others, but apparently stayed in iran. all we know is his name. nosratollah khosravi roodsari. the three other americans were spend their first night of freedom at the landstuhl military hospital in germany, which has long offered a warm welcome and medical care to u.s. hot tajes and prisoners on their way home. as you saw there, jeff, some members of hekmati's family are on the way to germany right now. and jason rezaian's family is already here. the hospital will offer them a refuge so that they can reconnect with both peace and privacy. >> glor: liz palmer, thank you very much. from the white house to the campaign trail, the prisoner swap is getting mixed reviews. here's julianna goldman. >> this is a good day. >> reporter: speaking just hours after the american prisoners began their journey home, president obama hailed

smart and disciplined diplomacy. >> the united states has never been afraid to pursue diplomacy with our adversaries and as president i decided that a strong, confident -- confident america could enhance our national security by engaging directly with the iranian government. we have seen the results. >> reporter: his remarks stand in stark contrast to republican presidential candidates who today argued that negotiating with iran makes the u.s. less secure. whether it's over the release of american civilians. >> this should have happened years ago, george. we're giving them 150 billion dollars, this shnt be lapping now. >> reporter: american sailors. >> ultimately they released them but only after achieving what they wanted from it. and that is to prove that if they wanted to, they can grab american sailors and subject them to this treatment. >> reporter: or a deal to cur iran's new clear prab. >> it reflects a pattern we've seen in the obama administration over and over again.

and making deals and trades that endanger u.s. safety and security. >> reporter: democratic presidential candidate and former secretary of state hillary clinton said talking to iran makes the world a safer place. >> this is the kind of smart diplomacy. i i was proud to be a part of in the first administration of president obama, that we're just going to have to be persistent with. >> reporter: the president has said pronownd differences remain between the u.s. and iran and the administration today announced new pen alts on 11 individuals and entities involved in transballistic missile program. most iranians will never feel those sanctions and are tiny compared to the $100 billion in frozen funds it released with the iran deal implementation. >> glor: julianna, thank you. ed lifting of saks, with will bring will ams of gallons of iranian oil. the price of crude oil fell below $30 to a 12 dreer low. the dow dropped another 390 points. to are more on all of this, our

schlesinger joins us. let's first talk iran. what is the immediate impact now? >> they are already pumping and bringing oil to market it is expected that there will be 300 to 500,000 barrels a day from iran. that's on top of the million barrels right now a day that is in surplus. more oil than we need. that's why crude oil is down so dramically. down 10 and a half percent this year. that comes after 30% last year, 46% the year before. >> glor: meaning cheaper gas prices but also a lot of questions. middle eastern markets plunged overnight. american markets had a terrible week last week. we are closed on monday but reopen on tuesday, they are all in correction territory now, what are we expecting. >> we will have a lot more volatility and the big question is whether this 10% down, the correction, turns into a full blown bear market that is a 20% slide. we haven't been in a bear market in seven years. it is a long time. some parts of the market already in a bear market. the small companies, the transportation index. so what are investors looking

they're looking for data to confirm, is the world slowing down. is that impacting the united states and is that impacting earnings of corporate america? we don't know yet but what we do know is that with the world in turmoil, hang on, it is going to be a bumpy ride. >> glor: even though the fundamentals are still generally good for the u.s. economy. >> so far, so good. but again, this can be more emotional than databased and we have to remember that, that markets are usually rational over the long-term, short-term, not so much. >> glor: when people are scared, they sell scared. thanks, jill. >> we are learning tonight that three american contractors are missing in iraq. reportedly abducted by a militia. a state department source tells cbs news the u.s. embassy in baghdad received a warning last week that an iran--- iranian-backed i militia wanted to abduct an american contractor. two weeks until the first votes are cast in the 2016 race for president. a new national poll has hillary clinton 25 points ahead of bernie sanders in the democratic

but democrats have the thar fourth debate tonight in charleston, south carolina and nancy cordes is there. >> reporter: i am d. >> i'm very pleased he flipflopped on the immunity legislation. now i hope he will flipflop on what we call the charleston loophole. >> it disappoints me that the clinton camp is kind of sounding like republicans. >> reporter: on a slew of sunday shows, sanders and clinton gave a preview of the fireworks we will see tonight. over health care. >> i think it's very confusing because he hasn't put forward a plan. >> she doesn't have a plan, that is the concern. >> over guns. >> senator sanders has four years, voted many times on behalf of the nra gun lobby position. >> i resent very much clinton camp saying i'm in the nra lobby. i have a d, like in david, d minus voting record from the nra. >> reporter: and over economics. >> hillary clinton is somebody who has received significant sums of money from wall street. >> she said she went to wall

>> why cult it out. >> you know what, cutting it out is not good enough. >> reporter: the vermont senator's focus on income inequality has propelled him to a tie with clinton in iowa and a double digit lead in new hampshire. >> the minimum wage of $7.25 an hour is a starvation wage. >> reporter: a development that took even him by surprise. >> nine months ago did you honestly think you would be neck in neck with hillary clinton. >> we thought that we had a message that was going to resonate. it has resonated faster than i thought it would the. >> reporter: so clinton is recalibrating. she will argue tonight that she's better prepared for all aspects of the presidency, not just economics. but foreign policy as well. if sanders does win in the first two contests, she will have to blunt his momentum here in south carolina, jeff, where some polls show her leading by up to ho points. >> glor: nancy cordes, thanks very much. at least two people were killed

central florida. a couple was killed in manatee county when their mobile home was hit. another tornado in the beachtown of siesta key also cause wide spread drurks leaving 17,000 people without power. >> the search continues for 12 marines after two helicopters could lieded off hawaii. three days after the crash hope for finding survivors survivors is fading. >> reporter: rough seas, waves up to 20 feet high are hampering search efforts and overnight a coast guard air crew had to briefly change course when a laser was pointed at them. searchers have scoured nearly 14,000 square miles off the north shore of o'ahu looking for any trace of the missing marines somewhere in these waters. they found small amounts of debris said lieutenant scott carr. >> i know a lot of people are focused on debris but we're really focused on hopefully finding survivors. >> reporter: the marines have released the names of the 12 on

the oldest, 416789 the youngest just 21. last night hundreds packed a high school field in stayton, oregon, where 21 year old lance corporal ty hart attended. >> it really gives you goose bumps. you feel like are you running out for a game but it is just as many people are out here right now showing support. and who knows how many of these people know him directly. >> reporter: major shawn campbell from college station, texas, has a wife and four children. the family of captain kevin roche of st. louis writes, we believe the marines and coast guard are doing everything they can to bring kevin and his fellow marines home safely. all 12 remain the target of a desperate search. mir a ya villarreal, cbs news, los angeles. >> glor: still ahead, an american reveals how he survived a deadly terror attack in africa. >> and a flower rooted in space

cbs evening news continues.

more about the victims and survivors of a terror attack with west africa. at least 28 people were killed on friday when gunmen opened fire at a hotel and cafe in burkina faso. here is jonathan vigliotti. >> as security forces surrounded the splendid hotel and neighboring cappaccino cafe both under seige by terrorists, amy rittering tried desperately to reach her husband mike. he was at the cafe when the assault began friday night. i still have no news about mike, she wrote on her facebook page saturday morning. as military forces were still trying to regain control. florida native mike riddering moved with amy and their two daughters to burkina faso in 2011 to started be orphanage. mike and a pastor were at the cafe in the country's capitol ouagadougou to meet new volume teers. the pastor later called amy after escaping.

shooting and everyone ran to hide. the pastor show had mike's phone and called, wrote amy. it was still unclear if mike survives. another american edward bunker emerged from his room to a deserted hotel lobby. >> there was someone with a gun going down the street. and this was really the moment when i kind of realized that there was something majorly amiss. >> reporter: the 12 hour seige began when heavily armed al-qaeda militants, two of them women, stormed the building and set off car bombs. in all, 28 people were killed including a canadian family of four who are on a humanitarian trip. 11 americans including edward burnger, made it out alive. mike riddering did not. you left quite a legacy here. i can only imagine the adventures you're having now, read amy's final post. jonathan vigliotti, cbs news, london.

growing voting bloc. >> glor: we're less than 10 months until election day. some presidential candidates are seeking support from the nation's fastest growing voting bloc. here's carter evans. >> reporter: when hillary clinton held this rally in san gabriel, california, home to the country's largest asian american community, she also launched a campaign to target what may be a key vote in november. >> i'm very proud to have so many asian americans and pacific islanders working with me. >> reporter: they are the country's fastest growing political constituency whose registered voters doubled to 4 million between the 2008 and 12012 election. >> we've gone from being marginalized to becoming the margin of victory. >> reporter: leading the anan vote initiative is congresswoman judy chu who brought in supporters from around the

>> certain states will have a huge affect on the outcome of this presidential election such as nevada, such as virginia. >> and you're from las vegas. >> we have voters. we know how to deliver those votes, shekar narasimham poipts to the senate election in his state, virginia. >> thank you, virginia. >> reporter: where asian american voters made the difference for democrat mark warner who won by less than 1 percent of the vote. >> republicans used to enjoy the majority of asian american support. >> university of california professor karthick ramakrishnan runs the nonpartisan asian american survey which shows a political shift after the 1992 election when just 31% of asian americans voted for democrat bill clinton. by 2012, 73% voted for bar ak obama. >> what changed sh. >> one is the clintons. this is where hillary clinton can draw on a lot of support from what she and her husband

doing outreach to these populations. another part that has changed is the republican party, especially its rhetoric on immigration have turned off a lot of voters. >> we are a country built by the hard work of generations of immigrants. and we are stronger because of our diversity and our openness. >> reporter: something asian americans like to hear because nearly two thirds of their population was born outside the u.s carter evans, cbs news, san gabriel, california. >> glor: still ahead here,

be as fun as that >> glor: david bowie's last album is now his first number one album in the u.s one week after bow c.e.o.'s death "blackstar" debuted on top of billboard 200 today. the album was released two days before bowie died. >> space-x launched a new

the jason 3, a weather satellite monitoring el nino conditions was lifted into the strats fear using the company's falcon 9 rocket. the hope was to land the falcon 9 on a barge in the pacific. that did not work. the landing was too hard. >> a beautiful breakthrough on the international space station. the first flower ever grown in space. it san orange zinnia. chosen because it's not only pretty but also edible. astronauts taste tested lettuce grown on the space station last year and they say it was pretty good. presidential ambitions on display in washington today. at mascot tryouts for the nationals baseball team. here they are. they had to run for the job. challenging enough, as you can see but they also had to do a free style dance routine. the winners will run a presidential race during every nationals home game. >> coming up, meet the monks who

beer. >> glor: we close tonight at a century's ol monastary inity lee where american monks are making heavenly harmonies as they tap into history. here's allen pizzy. >> reporter: close your eyes and you could be back in the 119 century, that's when the chants were written and when st. augustine founded the benedictine order of monks in this bas il ka. father cassian folsom a graduate of the indiana school of music came here in 2 thousand with the aim of rejuvenating the monastary and bringing its music back to life. >> they don't sing or they think they can't singk we give them voice lessons because it is so much part of our liefer. if you can't sing, it would be pretty boring here. >> the voice lessons are so good that a music company asked them to cut a c, did. it ended up at the top of

the recording sessions had to be slotted into a daily schedule of work and prayers that start at 3:45 in the morning. the monk on the album cover father benedict nivakoff figured it would have less of an appeal. >> music and beer can get where words often can't. >> they're both good for the soul. >> both good for the soul, especially the beer. >> it churns-- turns out beer is another monsatic specialty that has its roots in medieval times. brother francis, the brew master from dallas says ancient brewing was a kiengd of public health service because the boiling process ster ilized often dirty water. >> it is really an ak of creation just like god. all things god may be dollarified, it is one of the motos in the vatican order. >> the monks brew and sell a blond beer that 16% alcohol and a dark version that is a whopping 10%. >> we don't want it watery. we don't want it light. it's something that grabs your

>> reporter: it certainly does that. well, if you thought the music was divine, you should try the beer, trust mee. >> reporter: and given the quality of the music, that's saying something. the legacy of st. augustine and his monks, two wonderful ways to sooth the soul. >> allen pizzy, cbs news, norcia. >> glor: that is the cbs evening news tonight. later on cbs, "60 minutes" and first thing tomorrow, cbs this morning. i'm jeff glor in noncht good night. captioning sponsored by cbs captioned by media access group at wgbh access.wgbh.orgwalmart prepares to close it's doors for good this weekend.... how people are reacting who depend on the store.

> changing the standards of drunk driving... why top transportation officials in the u-s want to change what defines drunk driving ... and how the move could save thousands of lives./// now, nevada's first choice for news, this is 8 newsnow, weekend edition sharie johnson thanks for joining us. i'm sharie johnson. in about 30 minutes... a walmart in a low-income neighborhood will be closed for good. the company is closing 269 stores globally, including 154 in the u-s. 8 news now reporter karen castro takes a closet look at the impact on this community. karen. ((karen castro)) after the walmart closes in the northeast valley, there won't be many options to shop nearby... leaving residents scrambling for a neighborhood grocery. (( )) ((karen castro)) walmart customers crowded the parking lot on the last day of business.