It is interesting to watch the chaos in Iraq. The US spends millions to destabilize Syria, and then wonders why the whole area is weaker. When will the US learn that, to quote the old cliché, if you lie down with dogs you rise up with fleas. These fleas bite. My guess is that the US will throw enough air power to help the Shia Iraqi government survive. This will mean that ultimately the US is supplying both sides in this war. Irony thy name is Obama.  

The US is supplying support and Russian weapons to the insurgents. Why would it then be wrong for Russia to support and supply weapons to insurgents in East Ukraine? (Interestingly the insurgents in Ukraine use Russian weapons. This is stated to prove that Russia supports them. Maybe Russia does, but the presence of Russian weapons proves nothing, they are used everywhere because of their durability. This is why the US choose them.) 

Watch this PBS documentary about the training that the Syrian rebels have received from the US. It is also ironic that government, (and viewer!), supports this type of program that you seldom see on TV anymore.