This cartoon by Clay Bennett from the Chattanooga Times Free Press shows NRA executive vice president Wayne LaPierre being handcuffed and arrested by a policeman. An automatic weapon lies on the ground, so we can suppose that LaPierre has broken the law in some way.
EXPLANATION
Following the Sandy Hook Elementary School massacre in December, LaPierre held a press conference during which he called on Congress to pass a law putting armed police officers in every school in America, saying, "The only thing that stops a good bad guy with a gun is a good guy with a gun." The cartoonist clearly thinks that LaPierre himself is the bad guy for championing the right to possess deadly weapons. The policeman represents the good guy, i.e., gun control.

