"Now that President Obama's administration says it's prepared to arm Syria's rebels, this raises a question relatively few people can answer:..."

"Who exactly are these guys?"

Are The Rebels United?

No.... U.S. policy shows the sharp distinction the Obama administration is making between the various factions. Weapons will be going to more secular groups, while the administration has declared the leading Islamist faction, Jabhat al-Nusra, a terrorist organization.

Trust the Obama administration to make sharp distinctions, count on the Syrian rebel groups to maintain sharp distinctions, and expect the distinctions to continue into the future if the rebellion succeeds.