More Washington, D.C. insanity: A man was flown to the hospital by helicopter from the National Mall following what may have been a case of self-immolation. Witnesses told NBC Washington "they saw a man pouring gasoline on himself, then possibly setting himself on fire." "A runner and passerby put the flames out," Vanessa Sink, who took the above photo, tweeted. "It was incredible." And #horrifying: