There has always been corruption EVERYWHERE! Didn't J Edgar Hoover cover up his own crimes (blackmailing male gov't workers he slept with, blackmailing PRESIDENTS & congress personnel)? But there are more checks & balances today for FBI personnel at every level so the corruption level is kept at very minimal. There is NO profession today or vocation or avocation that can legitimately claim there's never been a single corrupt person within their midst. I'm certain the FBI would cover up wrong doing by one of their own, just as cops cover up for one of their own, doctors cover up for one of their own, attorneys cover up for one of their own, as judges cover up for one of their own, imams, ministers pastors, priests, rabbis, etc., cover up for one of their own... it's HUMAN nature.