Jonah Falcon has the world's largest junk. . . it's 13-and-a-half inches when flaccid.  And when he tried to fly out of San Francisco on July 9th, he got stopped by the TSA . . . because they saw a "noticeable bulge" in his pants.  They patted him down and dusted his pants with explosive-detecting powder before they were convinced it was all him.  Jonah says next time he'll wear bicycle shorts, so there's no question.