What does Paula Broadwell know? The mistress in the Petraeus scandal has been the subject of scrutiny after the FBI discovered she had low-level classified material on her computer and documents at her home. A federal investigation is looking into how she obtained these classified records, and whether Petraeus’s staff gave them to her during her research. Anonymous staffers say she repeatedly requested information that she said Petraeus wanted her to have. Broadwell’s top security clearance has already been revoked.