David Hardy at "Of Arms & The Law" explained it best:
John Rosenthal, of Stop Handgun Violence and American Hunters and Shooters Association, went on a radio show to discuss his latest anti-NRA billboard, and in the process explained how he'd made a straw man purchase at an out of state gun show, after licensed dealers refuse to sell to him.
Not that he'd have to worry about prosecution, of course. Which is why he felt free to confess to a federal felony over the radio. Oh, and the Boston Globe paid for the buy.
Of Arms & The Law
Gun Owners' Action League