captioning sponsored by cbs and johnson & johnson, where quality products for the american family have been a tradition for generations. osgood: good morning. i m charles osgood and this is sunday morning, our last sunday morning of the year. and as we finish the holidays our plate is full this morning but we begin with the latest on the developing story that has sadly become a familiar one in this decade soon to end. we have the very latest on the christmas day attack on northwest airlines flight 253. from our cbs news correspondents around the world starting with jim axelrod in detroit. we are learning more about umar abdulmutallab, the 23-year-old nigerian man charged with trying to blow up a plane carrying 278 passengers on christmas day. and more about how he was stopped. the next thing i heard and everybody heard this pop. like fire cracker. everybody looked at each other and said, what was that? reporter: the attack on flight 253 later on sunday morning. osgo