If there ever was an image that made me want to through my hands up...

I don't think you can let use of chemical weapons on civilians go unchallenged.  However, if there ever was an image that would make me question this it would be this.  These are Syrian insurgents about to put Syrian soldiers - POWs - to death.
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And they are proud of it.  I don't want to help these animals.
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These my be some beneficiaries of our actions.  But unintended beneficiaries aren't the issue here.  If there is an issue, if there is a reason to bomb Assad forces, it isn't to help these guys; it is to stop the use of poison gas on children and innocents.  I still think that, but my faith is shaken.