"One insightful piece of news from the last week is some of the "moderate" rebels, the "moderate" rebels, so-called "moderate" rebels, have now signed a ceasefire with ISIS. So, really, their enemy is Assad, and they don't really care what ISIS does," Sen. Rand Paul (R-KY) said on CBS Monday. "And, so, they are the weakest fighting force there. It’s a mistake to arm them. Most of the arms we’ve given to the so-called "moderate" rebels have wound up in the hands of ISIS, because ISIS simply takes it from them, or it’s given to them, or we mistakenly actually give it to some of the radicals. So, the intervention in Syria has created a safe-haven for ISIS and has made our problem much more difficult."