Who is it that controls Obama then, the illuminati? The Bilderberg group? Aliens? Do you understand that the theory you just presented of Obama releasing the sarin in Syria puts you on the edge of nutters?
At worst, Obama is incompetent. He isn't malicious; overall he's a nice guy.
I didn't say Obama or the U.S. government was behind releasing the sarin. I said that it might have been released to benefit and promote our political agenda at home (NSA, etc.) as well as our foreign policy.
If a third-party wanted us involved, the release of WMD is a proven catalyst to get the U.S. involved in a conflict.
The question is does the involvement of the U.S. in Syria, even if it furthers the political agenda at home (NSA, etc.) as well as our foreign policy, hurt us or help us in the long run? Al Qaeda already has a foothold, it's influence will surely increase. Russia and China can point out that the U.S. is the only superpower who is continuing to interfere in the sovereign operations of third-world (maybe two and a half-world) governments resulting turning world opinion against us. The economic drain of the continued military actions is bankrupting us.
It's a case of getting what the U.S. wants could be the worse thing thing for the U.S however the economic and political significance of that action will benefit many industrial and financial factions as well as other governments.
Then again, this could all be caused by a small group of Syrian military or political fanatics. We will probably never know the real truth. The victors always write the history not necessary the truth.