and by the frontline journalism fund, supporting investigative reporting and enterprise journalism. >> 3407, turn left, heading 3-1-0. turn right, heading 1-4-0. >> right, 1-4-0.u >> miles o'brien: it was february 12, 2009. inside air traffic control at buffalo international everythin[ was running smoothly. continental flight 3407 was on final approach from newark.%;i ñ >> 3407 buffalo. >> delta 1998, turn left. left heading 3-6-0. >> o'brien: then at 10:16, controllers suddenly lost contact with the crew. >> delta 1998... of your right side about five miles. >> o'brien: they scrambled to locate the plane. >> you need to talk to somebody. either state police or sheriff's department need to find out if anything is on the ground. >> it's just blackened and charred wreckage... >> i had the tv on, but all of a sudden a bulletin came on and they said there's a plane crash. all of a sudden, they announced it was a commuter flight from newark, a commercial airline, and i screed, i justcreamed. and i looked at my watch, and it was past the time she was supposed to land. and my husband sat up

and by the frontline journalism fund. with grants from scott nathan and laura debonis, and millicent bell, through the millicent and eugene bell foundation. major funding for this program is provided by the kendeda fund. >> chicago is now under full national security. >> a no-fly zone is in effect, except for the world leaders who are landing at o'hare, as president barack obama and a number of world leaders... >> hockenberry: it was a big weekend in chicago. last spring, the president was in town, along with the leaders of nato, to discuss threats to global security and nuclear proliferation. at a huge convention center, the eyes of the world were watching. >> ...that demands glol solutions. we came to chicago... (police whistle blows) >> hockenberry: but across town in a small hotel ballroom, the te of the world was also on the agenda. >> everything will be revealed in the second term. >> hockenberry: the eyes of the world might have missed this gathering. >> get ready for your al gore snow job. >> hockenberry: the messa

and by the frontline journalism fund, with a grant from the orfalea foundation. >> it's time to send a message to washington: stop spending money we don't have. how can we afford this tax? ...big corporations and the richest two percent. >> what's at stake is the future of america. >> it costs us, and taxes us, too much. >> american future fund is responsible for the content of this advertising. >> ryssdal: i knew right away this wasn't going to be the usual story on campaign finance. one of the first surprises was finding myself driving the dark streets of denver with attorney alan schwartz, who shared kind of a strange experience. >> it was early january of 2011, and my wife, who had just been reelected to the colorado state senate, got an e-mail from someone who claimed to have some information about a group that had sent out some attack ads against my wife. >> ryssdal: the guy said he had some documents, and a week later... >> i heard from this individual again. still not identifying himself, but telling me that if i wanted to see the documents, then i needed

and by the frontline journalism fund. >> in massachusetts, in a political fight that ted kennedy probably never imagined... >> kennedy's seventh campaign has become a desperate struggle for survival... >> this year he in his toughest race ever against a political newcomer... >> it's youth versus age, the senate's leading liberal against a wildly successful venture capitalist. >> we get a call from the boston police. and they say, "it's a mad scene down here." >> (chanting): we want ted! >> narrator: it was the night of their first debate. >> "we're going to have to get you an escort to get into the building." they had eight or ten motorcycle police officers there to guide us through the mobs of people at the site. >> narrator: it was 47-year-old mitt romney's first campaign. >> and mitt just has this big smile on his face, and he looks at me and goes, "boy, however this turns out, this really makes it worth it." >> narrator: the race had been close. romney needed a great performance. >> i don't think he had any idea what

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