tim clemente good to have with you us. for what this could mean, i'm joined by rand counterterrorism analyst colin clark. colin good to see you. >> on air force 1, the u.s. was not aware of any significant threats oamerican interests related to the attack in paris. should that reassure us? homeland security is not raising the u.s. terror alert. >> 80, i think that should be reassuring. look -- yes, i think that should be reassuring. oesn't mean there's a connection to the united states. when we talk about the west we talk about the west very broadly to include the united states, to include canada, to include western europe and even countries like awfort. australia. >> so much of the focus on international terrorism has been on i.s.i.l. now we're talking about al qaeda in the arabian peninsula, both groups have threatened to attack the american heart land. the underwear bomber in 2009 and potential attack in 2010. which do you see as a bigger threat to the united states? >> well, it's difficult to rank these groups and say this is the most dangerous threat, this is priority number 1, this group is 1a. i t