yemen says it provided umar abdulmutallab with the explosives he smuggled on though that detroit plane. in addition, at least two former gitmo prisoners have been identified as top al qaeda leadersed in region. u.s. intelligence officials are working to connect the dots. so far, they say they ve not uncovered any link. still, the presence of al qaeda in yemen raises difficult questions for president obama, who has to figure out what to do with those gitmo detainees. half of them are yemeni nationals. we will continue to use every element of our national power to disrupt, to dismantle, and defeat the violent extremists who threaten us, whether they are from afghanistan or pakistan, yemen, or somalia, or anywhere where they are plotting attacks against the u.s. homeland. we ve got the story covered from all angles. let s start with nbc news justice correspondent, pete williams, and the latest. we got some ideas on how these explosives were smuggled on the plane by looking