Will take this sentence one football field further and state that state and defense departments and obama knew the weapons captured in libya would go to turkey then syria via major exporters in libya via islamist fundamentalists who this time had not only guerrilla warriors to export to syria but also weapons.
They don't want chem weapons used on Israel. Not that they care about Israel because they don't.
They just know that Israel fights back. They don't want to see Syria get wiped off the face of the earth since russia would notice and they are good friends with pootie.
IMHO,its not likely since they have had chem weapons forever and there is little record of them(Syria) using them so why now when everyone is watching.
Other rumors are that hillary/obabma orchestrated a plan to have the MB terrorists fake a chem attack and blame it on Assad forces so they could go whole hog on Assad.they want him out and the MB in.
Trouble is Russia is watching as well they keep wanting that warm water port Syria has,they are tight with Assad.