Last week's hopeful coverage of the Syrian ceasefire has proven to be pretty foolhardy; it took just seven days for the ceasefire to give way to all out war yet again. The question of who is at fault couldn't be more important, as a reluctant, wary, and careful U.S. may not be willing to continue to back the rebels if they ring the final death knell of the ceasefire. Equally unclear is what the U.S. would actually do if the blame for the resumption of violence is at the doorstep of the Assad regime. But the sequence of events is at best murky, and the outside brokers are the ones who seemed to have upended the lull in violence. On Saturday, Assad troops were struck and killed by U.S.-led coalition strikes - which the U.S. has said was a case of bad intelligence rather than bad intent. And then on Sunday, Russian airstrikes hit a humanitarian convoy and Assad's troops bombed areas around Aleppo. Yesterday at the United Nations Security Council meeting, Secretary John Kerry sounded desperate to find a way forward, not allowing Assad's declaration of death for the ceasefire. Kerry has called for a recommitment to the ceasefire and now, also for no fly zones in northern areas. Kerry said that the truce is "hanging on by a thread." So is the whole country.