Syrian Attack and cynicism

The day after Sept 11th this year the news informed us that a group of four attackers with a car full of explosives attempted to attack the American Embassy in Damascus, but were gunned down by Syrian security guards. The immediate assumption might be that it's just another episode in the war on terror. I find myself viewing the situation with a slightly jaundiced eye. Syria is a country with a strong domestic intelligence system which is unlikely to have completely failed to identify a quartet of heavily armed attackers who parked a vehicle loaded with explosives outside the embassy and apparently detonated another. Syria has been in the Bush Administration's crosshairs more than once recently because of their relationship with Hezbollah. Would it be beyond belief that the Syrians, watching their domestic terroristas, might know of or even encourage an attack on the Embassy which they could then fend off thus earning some points with the US and getting them a little distance from the hotseat? I don't think it takes too much imagination to consider that possibility. A reminder that things aren't necessarily the way they seem.