I wouldn't hire a security company run by the former head of the NSA. Is there any question in anyone's mind that if he was approached by the government to put a backdoor in your company's product or infrastructure, he wouldn't hesitate for a second to say yes?
How would you know? The US intelligence budget clocks in around $52 billion. You don't think a few million could be allocated if it was the most-expedient way of making something happen?
Can't the government use everything they know he has done with them to ban him entirely from the sector? Some kind of conflict or interest or just hang him with something and put out a black mark.