Wow Godwin's Law kicked in very early on this thread (
http://en.wikipedia.org/wiki/Godwin%27s_law)

If Assad was stupid enough to launch a relatively small chemical weapons attack the
very day the UN inspectors arrived in the suburbs of the
capital city they are staying in he would have been toppled years ago. Unfortunately a lot in the west are gullible enough to believe it though

.
Obama was stupid (or reckless, or devious, depending on your point of view) to say if the red line of chemical weapons use was crossed he would invade. That was an open incitement for the rebels (insurgents) to obtain or make sarin (it's not that difficult, remember the Tokyo underground attack (
http://en.wikipedia.org/wiki/Sarin_gas_attack_on_the_Tokyo_subway?).
The very obvious softening up of the West's electorate for military action which some here have noticed (and some not

) is I think not for invasion but for a surgical strike to take out Assad and his top supporters. The mysterious paper bomb 18/7/12 that killed the Syrian defence secretary, the intelligence chief, plus Assad's brother in law, and wounded many including the interior minister was clearly an attempt to do the same. This time, if the West have successfully wound up public opinion enough, they can just do it openly with a drone. Or maybe a laser

.