Jihad at Fort Hood (Religion of Peace Alert)

Front Page ^ | November 5, 2009 | Robert Spencer

[xzins]

I would assume he had a security clearance and had had it for a long time

Sadly, you're probably right. To hold his rank he'd have to have secret clearance even for a mundane assignment. As a psychiatrist, he could be reasonably expected to hear information that would make it possible to extort those with clearances, or he'd hear enough bits of information to put 2 and 2 together.