below zero temperatures. get news around the clock by visiting wusa9.com. tgif, everybody. from north to south, the cold just won t quit as another layer of snow blankets much of the country causing deadly accidents. we ll bring you the latest icy forecast. as flight 253 s terror suspect heads to court, president obama comes clean on the botched christmas day bombing saying the buck stops with him. when the system fails, it is my responsibility. he promises changes, but will they work? we ll ask a former national intelligence director. john mccain s former top adviser comes out swinging and tells 60 minutes oig sarah palin also struggled with straight talk. there were numerous in-stamss that she said things that were not accurate. we ll have more from the controversial new interview. and nbc shakes up late night again. reportedly set as to move jay leno back to his old time slot. early this friday morning leno back to his old time slot. early this friday m