Antisemitism - discriminating against, or attacking someone simply because they are Jewish.
Then WHY did the ADL claim that Mel Gibson's remark that "Hollywood is mostly controlled by Jews" was antisemitic? How is stating a fact, "discriminating against, or attacking" them? It's not! And it's garbage like that, which gives certain groups ammo against them. The ADL needs to dial it back about 10 notches, and get back to reality.
/rant