CALLER: You know, about this word "racist." It's the single most effective weapon ever devised by the far left and anti-Americans. It immediately -- it's more effective than nuclear arsenals. It immediately puts us on the defensive, no matter what the subject. The Muslim jihadists use it against us, the Mexican invasion is enabled by it. Even our gangs. We can shut down the gangs with the National Guard and a big police presence.

O'REILLY: Oh, you could easily shut the gangs down. You're absolutely right. But, you know, but the ACLU [American Civil Liberties Union] would be right on your butt saying, "Oh, you're racist. You're profiling. You're doing this, that, and the other thing." I understand what you're saying, [caller], and it's absolutely true. But enough's enough. You know, I'm throwing down the gauntlet on these people. And anybody that uses this weapon, you're gonna get a visit from me.