Ah right, so Petraeus has invented this story about his infidelity so he can use it as an excuse to resign?
lol, move over birthers.
What does marital fidelity have to do with the job of CIA director? He might have had an affair, but that of itself seems to be no reason to resign. Nobody cares and he wasn't running for election.
What does marital fidelity have to do with his job? For one thing, if he was keeping it secret and didn't want it to come out, he could be blackmailed for secrets, I mean........after all, he IS the DIRECTOR of the CIA.
As a matter of fact, in the military, if you have really bad credit, or have things that pop up on your security screening that could be used to compromise you, they will deny you access to classified information. Ever been through a Top Secret security screening? I have, and let me tell you..........it's pretty thorough, and in some cases where a person has access to SCI, they are screened every year.
As far as who the other woman is? Really simple...........it's that chick that wrote his biography while he was in Iraq and spent a lot of time with him. The FBI is currently investigating her to see if she could have somehow had "improper access" (meaning he could have been compromised by her) to Petraeus.
So..................is infidelity a big deal? Yep, especially when you're dealing with very highly classified material like a CIA Director does.
Oh..............and for the record.................you CAN be fired from the CIA for infidelity.