A former top general in Syria's chemical weapons program says he doesn't doubt for a moment that President Bashar al-Assad will deploy his chemical weapons arsenal as he tries to hold onto power and crush the uprising that started almost two years ago.

"The regime started to fall and deteriorate. It's coming to its end," said retired Major General Adnan Sillou in an interview in a hotel near Antakya, on Turkey's southern border with Syria. "It's highly possible that he'll start using [chemical weapons] to kill his own people because this regime is a killer."

Until September 2008, Sillou was chief of staff on the defensive side of the chemical weapons program. He was in charge of training soldiers against attacks and contact with the weapons, as well as procuring safety equipment to guard against them.

He listed mustard gas along with the sarin, VX and tabun nerve agents as the main elements in Syria's chemical arsenal, whose existence Syria doesn't even acknowledge. Foreign intelligence officials and analysts have focused on the first three as the main threats, and last week U.S. officials said there was evidence sarin had not only been moved, but its binary components, usually stored separately, had been combined and placed into bombs for use.

[link to abcnews.go.com]