Why would I address what was inside a mythical convoy? Maybe it was Christians fleeing Muslims - the Iraqi Christians all went to Syria. And yes, Assad and Saddam were deadly enemies - Syria participated in Desert Storm.
http://www.wired.com/2012/07/syria-iraq-wmd-meme/
No, Syria Doesn’t Have Saddam’s Chemical Weapons
I assume that was the title.
The deal is, it was never put as Saddam necessarily transported to the State of Syria (as under authority of Assad) what he did not want the U.S. military to find, but that he transferred significant amounts of chemicals to non-state actors within Syria, with some of that possibly ending up in the Bekaa Valley too.
Here is a possible place to begin;
5 1/2 minute youtube presentation hits the highlights. Search on from there, but don't rely on "wired.dotcom" to tell the truth, not when the writers there are entirely partisan, entirely anti-George W. Bush Admin, and actively pro 0bama.
Look around. What has that brought us so far?
Is the world safer now that the evil "Bush" is no longer around?
Zippy ran against W, even though George W was not standing for re-election, that fist time the Liar Who Reads Teleprompter won election (if he really did win, other than a jiggered election, after a jiggered Democrat primary election).