Quote Originally Posted by Max_Killjoy View Post
She's intimately familiar with and has near full access to the facilities, practices, and personnel of the agency on the front line against this sort of threat, and can be threatened with having her plug pulled at any time.

Regardless of the reality of what she'd do if it came down to it, any sane high-security agency would view her as a risk of being blackmailed into actions that would cripple that agency at the worst possible moment.
Right, but again, this is true of anybody with a spouse, conceptually. "is not immortal" is not a good reason to have security clearance revoked. The specific nature of their relationship is basically the only relevant factor here.