There's nothing to disprove in Gary's statements. You can't refute the statements of this former FSB agent, just as you can't refute the statements of Ion Pacepa, former head of the Romanian KGB.
If you think that pointing out Zawahiri is FSB trained plays into the left's hands you are wrong. What are you going to tell us next, that Ion Pacepa is a liar and the KGB never bankrolled Arafat?
The fact remains that this story has confirmed many suspicions that this is a proxy war by communists to avoid MAD. See "Unrestricted warfare", China's military training manual that called for asymmetrical attacks against the US just like sept 11th (three years before).
A criminal of the first order, who after spending 30 years building and upholding one of the most tyrannical regimes, butchering untold tens of thousands, saw the writing on the wall, "defected" as his boss was being put up against a wall and has become the hero of the conspiracy minded, who have forgiven him all his crimes.
So when is Pacepa going to stand for his crimes and face his victims in Romania? Oh that's right, never.
How many children did this butcher murder, how many did he leave fatherless, motherless, brotherless or sisterless? But you and the rest always give him a pass, because he says pretty words that you want to hear. How quaint.