There will be NO limited military action. Assad and the other assorted clowns KNOW that. The ME despots will continue along their merry way, with the explicit backing of SA. Restraint will once again be construed as weakness on the part of the USA. In the end, nothing will happen, other than a diplomatic nasty-gram.
I wouldn't say there will be "no limited military action", I could see SF teams be sent in to deal with Zarqawi's bases in Syria.