Paula Broadwell, the biographer of former CIA Director Gen. David Petraeus, with whom he had an affair, opened up to The New York Times in an interview published Saturday. "I'm the first to admit I screwed up," Broadwell said. "Really badly, I know that. But how long does a person pay for their mistake?" Petraeus resigned from his CIA post in 2012 after an FBI investigation revealed he had shared confidential information with Broadwell.