We’ve never trained or supported ISIS.
Please learn something before making false and slanderous accusations.
http://en.wikipedia.org/wiki/Syrian_opposition%E2%80%93Islamic_State_of_Iraq_and_the_Levant_conflict
Not as ISIS. We've trained an supported "freedom fighters" in Syria who turned and eliminated less extreme rebels. We've destabilized Syria and given ISIS a place to grow. Now, they're taking weapons we left behind in Iraq, and they move freely across what used to be the border with Syria.
We should've been on Assad's side. We've seen it all over the middle east. There's a reason these countries are run by dictators with varying degrees of ruthlessness. They keep their populations in line.