Back in March 2008, the State Department launched an investigation of improper computer access to the passport records of Barack Hussein Obama, and days later those of Hillary Clinton and John McCain. The investigation centered on one employee: a contract worker for a company that was headed by John O. Brennan, a key Obama campaign adviser who later became assistant to the president and deputy national security adviser for Homeland Security and Counterterrorism. Then, a month later, the key witness in this case was murdered. Leiutenant (sic) Quarles Harris, Jr., 24, was shot in the head in his car, in...