The agreement to establish cease-fires to allow aid delivery was the sole accomplishment of the last round of Syria peace talks, but the first mission in Homs was marred by violence.
With his coming visit to Saudi Arabia and new talks opening with Iran, President Obama can set the stage for reconciling the two Muslim giants over their historic Islamic rivalry.
Syria claims safety concerns, but critics of the chemical weapons deal say President Assad is feeling empowered – and may be stockpiling weapons in a regime stronghold.
Jabhat al-Nusra, Al Qaeda's designated affiliate in Syria, has avoided the infighting with other Syrian rebel groups that was ISIS's downfall. It could see its support surge.
And what's an affiliate anyway?