There are no take-backsies in FBI investigations. Jill Kelley learned that the hard way after triggering the probe into a series of threatening emails that ultimately led to the resignation of David Petraeus and the unveiling of a convoluted sex scandal. Kelley initially complained to the FBI after receiving harassing emails eventually traced to Paula Broadwell, Petraeus’s mistress and biographer, but attempted to stop the investigation upon realizing that it could cause her personal life to unravel. (Whoopsie, it has.) In another new development, Broadwell apparently didn’t just send disturbing emails solely to Kelley. She also sent messages denigrating her to senior military officials.