Summary: It was not immediately clear why the Dow Jones industrial average lost some 6 percent of its value in a matter of minutes and then recovered almost as quickly. The Dow ended with a loss of 346.51 points or 3.2 percent after its biggest intraday move in history. … One-year retrospective: One year ago today, on May 6, 2009, Aubrey Immelman reported that PolitiFact’s Truth-O-Meter gave U.S. Rep. Michele Bachmann a liar “Pants on Fire” rating for her false statement, “I find it interesting that it was back in the 1970s that the swine flu broke out then under another Democrat president, Jimmy Carter. And I’m not blaming this on President Obama, I just think it’s an interesting coincidence.” In fact, the February 1976 scare happened on the watch of Gerald Ford, a Republican — not that President Ford was blameworthy in the least; in fact, he called for a nationwide vaccination program, in which 40 million Americans were vaccinated in just 10 days.