CNN The Lead With Jake Tapper November 5, 2015 21:17:00
Angry at russia for helping the shia in syria. and you put all that together and it just seems to me that cocktail is likely to be a bomb. >> congressman, one of the reasons why people were reluctant to believe isis after they initially claimed responsibility was people didn't think they were capable of such an attack. are they? >> well, it depends. i think what you're finding is there's a lot of allegiances and terrorist groups out there that are drifting. some have gone from al qaeda to isis. some have both. we know that over half of the al qaeda affiliates in the world have pledged at least...