>> narrator: hayden outlined "the program." it would gather data on the phone calls and internet traffic of hundreds of millions of americans, then search it for suspicious connections. but he was worried about whether it was legal. >> and the first thing he says to me is, "mike, i understand your concerns. but there are some things we're going to have to do, and i think i have the authority to authorize you to do things that you've outlined." >> the president says, "go. i want you to go develop a program. come back to me. we've got the lawyers working on it, but you have my order. we're going to do this." >> narrator: hayden left the white house knowing that "the program" was bound to be controversial. >> no president had authorized it prior to this time. and michael hayden goes home after briefing the president and the vice president about his ideas for expanding surveillance and takes a walk with his wife. >> and she said, "what's on your mind?" i said, "well, we're going to do something here." and i didn't go into any detai

>> narrator: there were few options left. >> dr.allin asked me if we needed to close the hospital or if we needed to close the hospital to admissions. ultimately we decided not to close the hospital, but... >> hoffman: but it was a possibility? >> absolutely. >> narrator: instead, they expanded testing hospital-wide and isolated all those found with kpc. finally, six months after patient one first arrived, the outbreak subsided, almost as suddenly as it had begun. by then, 18 patients had been infected with kpc and the ultimate tragedy: six people had died from it. many inside nih continued to be concerned. >> hoffman: do you think kpc is now gone from your hospital? >> oh no, absolutely not. i think that, that we have to be extremely vigilant in the coming years. because of the increasing rise, the increasing prevalence of kpcs in the united states. >> one of the reasons that really brought me into this field is that i asked the director of clinical microbiology what do you do, you know, when you isolate one of these bacteria and y

>> narrator: last time on "united states of secrets"... >> we are under emergency conditions. extraordinary means are required to deal with the threat. >> narrator: they called it "the program." >> you're looking for unknown conspirators, and the way they devised to do that was to look at everybody. >> narrator: authorized at the highest levels of government. >> this is a highly classified program that is crucial to our national security. >> narrator: over two presidencies... >> i'm not aware of any case in which obama said, "you can't do that." >> i argued it was illegal and unconstitutional, and when this comes out, all hell is going to break loose. >> narrator: now, frontline's investigation continues. >> the nsa specifically targets the communications of everyone. >> narrator: with the story of the man who exposed it all. >> snowden said he was risking his freedom and possibly his life. >> this was a stupendous intelligence breach. >> narrator: and the convergence of government surveillance and an information revolution. >> the googles, the facebooks collect as much of our

narrator: air pollutants exist as harmful gases or as aerosols. aerosols are microscopic solid or liquid particles suspended in the air and these pollutants can have deadly effects. kolb: most of us can only survive a minute or so without a fresh breath of air, and if the air contains substances which are going to really hurt your health, you'd hate to think that you're shortening your life with every breath of air you take. narrator: the worst air-pollution disaster on record occurred in london in december of 1952. at this time, londoners still consumed lots of coal, which led to large amounts of pollutants in the air including black carbon or soot particles, and sulfur dioxide. and this toxic mix turned fatal. kolb : the particle loading got so heavy during one episode that the so-called killer fogs actually killed many thousands of people over about a week and a half. narrator: thanks to regulations to reduce these pollutants events like this are rare today. however, public health officials estimate that 70,000 americans die prematurely each ye

>> narrator: tonight on frontlintwo battle zones. first, on the ground in ukraine, with both sides of the conflict. (gunshots) ukrainian nationalists... and russian separatists... (chanting) >> narrator: james jones documents the resurgence of old hatreds in the battle for ukraine. and later tonight, our unprecedented reporting from syria continues... uncovering how the united states is secretly arming and training the rebels. >> whatever is being done here is fully inadequate. without the united states, they're basically finished. >> narrator: correspondent muhammad ali investigates. tonight, two new reports, one exclusive hour of frontline. >> frontlinis made possible by contributions to your pbs station from viewers like you. thank you. and by the corporation for public broadcasting. major support for frontliis provided by the john d. and catherine t. macarthur foundation. committed to building a more just, verdant and peaceful world. more information is available at macfound.org. additional funding is provided by the park foundat

narrator: in the lab, lonnie's team analyzes the ice cores.xygen isotope ratios provide a proxy for the temperature when the ice was formed. these records are consistent with other studies that reveal, going back 1,000 years, a long-term warming trend, beginning about 150 years ago -- carbon dioxide measurements. taken directly from bubbles trapped in the ice reveal ever-increasing concentrations of co2 over this same time period. adding to this wealth of information, lonnie's team can detect droughts by measuring chemical traces in the ice, blown in from dry lake beds. dr. davis: well, that's what i was just wondering about. one of the easiest historic records to track in an ice core are drought events. so anywhere you see sulfates indicate that the environment got very dry. here it is. right here was a drought. in calcium, there was an increase here in the '60s. and then you go down. here's another increase in the '30s. it was contemporaneous with our dust bowl period. actually, you know what that is? that's these. thompson: we're now findin

>> narrator: but according to the rules drake thought he had to follow, whatever he found had to safeguard americans' privacy. he started by digging around inside the deepest reaches of the nsa's secret r&d programs. >> and he stumbles into sort of a skunkworks, and he discovers that there was actually a program before 9/11 that could have, as they said, eavesdropped on the entire world. it's called thinthread. >> narrator: thinthread, a program that could capture and sort massive amounts of phone and email data, was the brainchild of veteran crypto-mathematician bill binney. >> the whole idea was to build networks around the world of everybody and who they communicate with. then you could isolate all the groups of terrorists. once you could do that, you could use that metadata to select the information from all those tens of terabytes going by. >> narrator: but to make sure the nsa would not spy on u.s.

>> narrator: on october 4, in a secret signing with cheney, the president officially authorized "the program." >> that order is written by david addington, the vice president's lawyer. it's not written by the president's lawyer. and this is not only unusual but probably unique in the history of major u.s. intelligence operations: it's written by the vice president's lawyer and stored in his own safe. >> narrator: addington worked out of a small office next to the white house in the old executive office building. >> this order is one of the most closely kept secrets of the bush/cheney administration for four years. it's kept so secret that many people involved in national security inside the white house and the government don't know about it. >> narrator: addington personally hand-carried a copy of the secret document out to fort meade.

." >> narrator: the warrantless email data collection was shut down. the crisis was averted. but at the white house, they were determined to resume it. >> and so they're sort of sifting through the fisa law, they're sifting through the patriot act trying to find existing laws, existing authorities, you might call it loopholes, to justify these programs. >> narrator: general hayden was sent to the secret fisa court to convince a judge to restart it. >> could we get a court order to authorize this?

. >> narrator: it was the least controversial and smallest element of the program. there was no reference to the massive gathering of domestic communications data. >> his characterization of the facts was simply wrong. and it was wrong from the beginning. the program wasn't to surveil known suspects, known conspirators. you could easily get a warrant for that. the program was to sift big data. it was to trawl through enormous volumes, literally trillions of telephone calls, trillions of emails, and to look for unknown conspirators. >> narrator: once again, it would be left to general hayden to brief the press. he too minimized the scale of "the program."

." >> narrator: nick merrill ran a small web hosting company in new york named calyx. >> it was a company that i started in 1994. we hosted mitsubishi motors, ikea, snapple, tanqueray-- you know, blue chip clients. and we hosted a lot of independent media and non-profit organizations that seemed like good people that i wanted to help, and that was really where my passion was. >> narrator: the letter merrill received was a national security letter, or nsl. after 9/11, the patriot act allowed any fbi office in the country to issue nsls without a court's review and with a gag order. >> it said he couldn't tell

." >> narrator: ashcroft was supposed to sign a reauthorization of the entire program every 45 days, and for two and a half years, he had. but now he balked. >> ashcroft gives comey his verbal assurance that he is not going to go along with this program and that he is going to demand changes or he won't sign. >> narrator: then just hours later, attorney general ashcroft collapsed, suffering from severe pancreatitis. james comey was now the acting attorney general. >> comey notifies the white

." >> narrator: hayden and gonzales say their willingness was informed by something that happened just before the addington call. (explosions) >> in madrid this morning, more than 190 people were killed... >> after at least ten simultaneous bomb blasts... >> narrator: it was one of the worst terrorist attacks since september 11. >> series of bomb attacks at three train stations during... >> given that starkness of the al qaeda threat and given the ambiguity of the situation, i thought the correct operational, legal and ethical decision was, "all right, we'll do this one more time on a somewhat different framework." >> so that was a point where he

." >> narrator: for cheney, addington, gonzales, hayden and others, the personal stakes at this moment were extremely high. >> it was a felony to conduct this kind of surveillance in the united states. and everyone was relying on the shield that they were trying to create of having the president order it explicitly and have the attorney general sign off and say, "it's lawful." and as soon as the justice department starts to say, "we're not so sure this is lawful," there is a great deal of concern and anxiety. >> five separate car bombs blew up in a span of 45 minutes... >> a bomb last night set portions of the old city ablaze... >> narrator: at the justice department, they prepared for conflict with the white house.

. >> narrator: klein was afraid to speak out for several years. >> the new york times broke the story about the national security agency spying inside... >> narrator: but went public after reading a front page new york timstory about nsa spying in 2005. >> when mark klein came out and said, "i work at at&t and the nsa is tapping into our network," that was the first time that the american public realized how far things had gone since 9/11. how much domestic surveillance there was. he raised this allegation. no one ever acknowledged that it was actually happening. it still remains an open question. but no one has ever denied it either. >> do you remember the incident in san francisco where the technician mark klein had found the room with the splitter?

. >> narrator: they sounded the alarm and reached out to an nsa official, john delong. >> i have two computers on my desk-- a classified computer and an unclassified computer. and i'm used to seeing that document on the classified computer. and i did a real double take. i remember just sitting there for 30 seconds checking and rechecking to see what computer this classified document appeared on. the gravity of it was quite palpable, and i thought, "this is going to be a really tough story as it comes out." >> narrator: at tguardian, editor-in-chief janine gibson took a return call from the white house. >> she has the deputy head of

. >> narrator: goldsmith discovered that as part of the program, the government had been tracking data about the emails of tens of millions of americans. >> he said, "you can't justify the email collection. it is, on its face, a clear violation of the 4th amendment and perhaps the 1st amendment as well." >> narrator: addington was furious that goldsmith would raise questions about "the program," and he let him know. >> he was very tough in making his arguments. he was very sarcastic and aggressive against people with whom he disagreed, and dismissive oftentimes. and he acted with the implicit blessing of the vice president. so all of these things made him a very, very forceful presence. >> you know, david pushed, he pushed everybody. he pushed me. even when i was the attorney general, he would push me. so that was just david's nature, and i think jack didn't

. >> narrator: the post went ahead. >> narrator: the prism revelations reached beyond the collection of phone records. this was about the acquisition of content from tens of

>> narrator: now general hayden wanted the sign-off of his top lawyer, robert deitz. >> i think he was concerned and wanted my view of whether this program was lawful. i spent a kind of sleepless night pondering the legality of it. this was a very hard call. it was a very hard call. >> the nsa has a general counsel and about 100 lawyers. and they were told, "the president has signed it, it's been certified as lawful, and once all the signatures are there, that's it, we salute. we say, 'okay, it's lawful, we're going to go ahead.'" >> in the intel world, if a president says to you, "i need this in order to keep the american people safe," you need to try to figure out where that line is constitutionally and march right up to it. >> narrator: two other nsa lawyers would also sign off

>> narrator: it had been nearly one year since the new york times had refused to publish the investigation into the nsa. during that year, "the program" had grown dramatically. terabytes-- huge amounts of information about americans' telephone calls and emails-- had been clandestinely captured. finally, reporter james risen from the new york times had had enough. he decided to strike out on his own. >> the story was dead now, twice dead, and i thought the only way to ever get this story out was to put it in a book. >> narrator: risen had a surprise for eric lichtblau. he invited him to drive over to his house to read a draft chapter of the book: the story the new york times had refused to print. >> the chapter was just called "the program." and in it, he basically made known the existence of this program and the fact that the

thank you for coming. >> narrator: as the president insisted the government always secured warrants, in washington, that department of justice

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,, female narrator: through memorial day female narrator: through memorial day at sleep train, get 36 months interest-free financing plus big savings of up to $400 on beautyrest and posturpedic. even get three years interest-free financing on serta icomfort and tempur-pedic, plus free same-day delivery, setup, and removal of your old set. when brands compete, you save. but this special financing offer ends memorial day at sleep train. ♪ sleep train ♪ your ticket to a better night's sleep ♪ doesn't really look like burger. man 2: grilled beef patty? that's burger-esque. man 1: yeah, but the flour tortilla is, like, quesadilla-y. man 2: it's both, okay? you happy? man 1: dude, it's four bucks. i am definitely happy. [ding] waitress: welcome to denny's. despite fierce opposition. a santa clara county judge ruled "christopher hubbart" be let out of a state mental hospital. he'll be living in palmdale... and have >>> a rapist is going to be released in california. christopher hubbart will be led out in the state's mental hospital. he will be living in california and have a monitor on him.

(narrator) the flute is one of the world's oldest musical instruments. over time, its construction, play-ability, and sound have been determined by the technology available to instrument makers. flute production has been and continues to be a marriage of sorts-- a marriage of artistry and technology. (wassar) the flute is really a very simple instrument. what makes it different from other woodwind instruments, like a recorder, is that instead of blowing down the instrument, you're actually blowing transversely. you're blowing across the embouchure hole just the way you would blow across a soda bottle. [lilting flute music] (greer) in the early 19th century, late 18th century, flutes were very simple. they had one key or two keys, if any, and they were hard to play in tune with themselves or with anyone else in a small orchestra, and consequently, they had a reputation for being whistle-like and not real sonorous or real colorful. this is the most simplistic of what we call transverse flutes, and it just has the six finger holes and one key for the pinky.

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you can go to her ,,,,,, female narrator: through memorial day female narrator: through memorial dayain, get 36 months interest-free financing plus big savings of up to $400 on beautyrest and posturpedic. even get three years interest-free financing on serta icomfort and tempur-pedic, plus free same-day delivery, setup, and removal of your old set. when brands compete, you save. but this special financing offer ends memorial day at sleep train. ♪ sleep train ♪ your ticket to a better night's sleep ♪ the following is a paid presentation for the bissell symphony, the all in one machine that lets you vacuum and steam mop at the same time. introducing the bissell symphony! it's the revolutionary floor cleaner that vacuums and steam mops at the same time. now you don't have to compromise! you get excellent vacuum performance and excellent steam mop performance. look at how the symphony vacuums up this mess better than this expensive dyson. and here you can see how the symphony gives you superior cleaning power over the shark steam mop. and unlike other machines that require you to go thro

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was up to. >> narrator: in a program called muscular, the n.s.a. was secretly extracting data from fiber optic cables overseas, where intelligence operations are much less restrained by surveillance laws. >> prism was a front door. prism was the court saying, "you have to cooperate with the n.s.a. and give specific information when asked." now, they find out that through the backdoor, the government is actually breaking into their infrastructure and taking whatever they want. >> they can't intentionally look for a u.s. person's information unless they believe it's a legitimate foreign target. but otherwise they're free to collect it at... pretty much unrestricted abroad. they can hack into companies' internal networks and collect information in bulk. >> narrator: the n.s.a. did this by invoking a reagan-era presidential order, from a time long before the modern internet. >> the n.s.a. decided it was okay under executive order 12333 and with the backing of the justice department and the white house to break into the private links, the private data l

we were very, very, very concerned. >> narrator: and the fact that their thin thread system had been incorporated into the program was the last straw. >> we said, "we can't stick around and be a party to this. we can't be an accessory to all these crimes, so we have to get out." >> narrator: at the end of october 2001, bill binney, kirk wiebe and ed loomis all quietly retired. >> woodruff: the film goes on to explain the government's rationale for its new controversial programs during the bush and obama administrations. and it looks at the major revelations by former government n.s.a. contractor edward snowden. that's where we pick up tonight's newsmaker interview. general keith alexander was director of the n.s.a. from 2005 until he retired at the end of march this year. he also headed the u.s. cyber command. welcome to the "newshour". >> thank you. >> woodruff: so given all the news, all the a stories that have been out there over the last year since the snowden revelations, i think there are some people out there watching who think the n.s.a. must collect whatever it wants to on a

narrator: these are the skater kid: whoa narrator: that got torture tested by teenagers and cried out for help. from the surprised designers. who came to the rescue with a brilliant fix male designer: i love it narrator: which created thousands of new customers for the tennis shoes that got torture tested by teenagers. the internet of everything is changing manufacturing. is your network ready? >>> it happened in san yisidro, a short time from ann and john bender's refuge, in april of 2001. >> so we were driving around and john mentioned there was a car behind us that just keeps following us. we pulled into where we were going to go. i looked at john and said this is a kidnapping. he just sat down on the ground because he knew they wouldn't be able to move him. >> they were not kidnapping him, they were acting as muscle for a past business associate of john's. john and ann no longer felt safe in costa rica. >> the first thing we did is we left the country. we went to canada. >> three months later they returned to their home in the rain forest. >> to come back, we had to be safe. so th

narrator: these are the tennis shoes skater kid: whoa narrator: that got torture tested by teenagers and cried out for help. from the surprised designers. who came to the rescue with a brilliant fix male designer: i love it narrator: which created thousands of new customers for the tennis shoes that got torture tested by teenagers. the internet of everything is changing manufacturing. is your network ready? honestly, the off-season isn't i've got a lot to do. that's why i got my surface. it's great for watching game film and drawing up plays. it's got onenote, so i can stay on top of my to-do list, which has been absolutely absurd since the big game. with skype, it's just really easy to stay in touch with the kids i work with. alright, russell you are good to go! alright, fellas. alright, russ. back to work! >>> when the daughter of a wealthy dallas family, nancy dillard lyon died her doctor made two phone calls, one to the medical examiner to suggest a thorough autopsy. >> i said i have a patient and i suspect foul play. >> the other was to police. >> they thought the death was susp

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. >> narrator: the document directly contradicted what director of national

narrator: these are the skater kid: whoa narrator: that got torture tested by teenagers and cried outrom the surprised designers. who came to the rescue with a brilliant fix male designer: i love it narrator: which created thousands of new customers for the tennis shoes that got torture tested by teenagers. the internet of everything is changing manufacturing. is your network ready? >>> welcome back to "power lunch." two biotech stocks are heading in opposite directions thanks to a jpmorgan call. the firm is upgrading biogen citing upside potential from the company's multiple sclerosis ms tr franchise. up about 3%. now, cellgene is moving lower. jpmorgan downgrades the stock to a neutral, saying the company's growth drivers are largely reflected in the stock already. it also said biogen has a better pipeline. cellgene down about 1%. back to you. >> thank you very much. >>> wall street and the pharma industry gearing up for one of the biggest events of the year this weekend. the big topic on the agenda, immunooncology. our biotech reporter is here to explain, and you're going to chicag

female narrator: through memorial day female narrator: through memorial day at sleep train, get 36 monthsrest-free financing plus big savings of up to $400 on beautyrest and posturpedic. even get three years interest-free financing on serta icomfort and tempur-pedic, plus free same-day delivery, setup, and removal of your old set. when brands compete, you save. but this special financing offer ends memorial day at sleep train. ♪ sleep train ♪ your ticket to a better night's sleep ♪ >> pam: common newt as 6:00 another pedestrian and stanford to its goal of this time on a muni realize how this latest case said to the city's painted reputation. >> pam: do not wash early bias we have a lot more news just ahead >> jacqueline: clear skies over the city right now the fault will be back also u.n., not fog you know what? why don't you go get some frozen yogurt. i got this. you're so sweet. you got this, right? i do got this. from the shelf, and to your home. starting at $99. this tillamookmook old fashd is absolutely amazing. creammmmmy. it makes my tongue dance. me too. hey you two, stop that til

. >> narrator: the president was on a fundraising trip in silicon valley.

narrator: these are the skater kid: whoa narrator: that got torture tested by teenagers and cried out for help. from the surprised designers. who came to the rescue with a brilliant fix male designer: i love it narrator: which created thousands of new customers for the tennis shoes that got torture tested by teenagers. the internet of everything is changing manufacturing. is your network ready? >>> after sending threatening e-mails to darlene, daphne wright became the prime suspect in her disappearance. police not a search warrant for daphne's house and what they found inside was troubling. >> i remember the smell of paint and the smell of cleaning products. especially when we got down towards the basement. >> they look in the kitchen garbage and there's a half full bottle of chain saw oil and i look a little further there's a receipt for ace hardware for a chain saw purchase just a few days ago. >> this was a time in year in south dakota where chain saws are not in huge demand. >> but there was no chain saw in daphne's house or anywhere on her property. >> down stairs, the basement h

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