Conn Hallinan is a columnist for Foreign Policy In Focus.
Allegations of sarin use by the Syrian government are bedeviled by chain-of-custody issues.
Obama's decision to arm the Syrian rebels will likely escalate the conflict and torpedo any possibility for a political solution.
There is no reason to continue the bloodshed in Afghanistan, which all the parties recognize will not alter the final outcome a whit.
In the current crisis on the Korean peninsula, the Obama administration is virtually repeating the 2004 Bush playbook.
Establishing a pro-Western government in Damascus and inflicting damage on Iran is an illusion.