"crime and punishment." and extreme living. we'll introduce you to a man that treats a marathon like a walk in the park. he's on his feet racing 150 miles at a time. 360 md, sanjay gupta tells us his inspiration. but a word on the blizzard that has pounded the northeast. thousands of flights have been cancelled. new york city's three major airports were closed for much of today but re-opened this evening. and there were major delays in philadelphia and at washington dulles as well with some travelers not able to get flights out until friday. we'll have more on the blizzard in just a few moments. first, "keeping them honest." new questions about airport security. these questions are being raised by a pilot who says he works for a major airline. he says the transportation security administration, the tsa, is not protecting the flying public. that while passengers and flight crews are subjected to pat-downs and body scans, ground crews are not. so anybody on the tarmac could put explosives on a jet. his name is chris liu and until tonight he kept his identity a