You forget all the arms WE supplied Sadam, much of that came back to haunt us in the form of 105mm/155mm projectiles being used for IEDs
Or more recently where in Libya where after-Benghazi reports suggest the reason the CIA had such a large presence there was to redirect some of the weapons they'd supplied the rebels to Syria (hence the ambassador's presence there).
Your logic it seems is that it is okay to supply dangerous weapons to SOME Muslims, but it isn't okay just now because Putin is offering more of a defensive weapons system (S-300) to Syria. Finally, if you think that the rebels trying to overthrow the current Syrian government are any better than Iran, then you are misguided because if they manage to overthrow it, then all those chemicals and weapons system really WILL be directed at Israel.
You are an apologist for Putin, and no different than the Liberals who apologized for the USSR. Sick.
If Iran is no different than the Muslims trying to overthrow Assad, why don’t you favor Russia selling them S-300’s? You’re situationally pro-Putin for arm sales.
The enemy of my enemy is my friend. Hey, we can play that, too.