The pilots told Mr. Sada that two Iraqi Airways Boeings were converted to cargo planes by removing the seats, Mr. Sada said. Then Special Republican Guard brigades loaded materials onto the planes, he said, including “yellow barrels with skull and crossbones on each barrel.” The pilots said there was also a ground convoy of trucks.The flights - 56 in total, Mr. Sada said - attracted little notice because they were thought to be civilian flights providing relief from Iraq to Syria, which had suffered a flood after a dam collapse in June of 2002.
http://www.nysun.com/foreign/iraqs-wmd-secreted-in-syria-sada-says/26514/
http://www.wnd.com/2004/01/23007/
Just about every Iraqi we came across, 2003, in northern Iraq was jumping up and down yelling the same thing......the weapons went to Syria on trucks.
Also, there were still folks with access/knowledge floating around after that. One of the Marines in my unit received an award after discovering a chem-bio IED lab during Al-Fajr.