Ameena Matthews, one of the "violence interrupters" who works with Chicago-based anti-violence group CeaseFire, was a guest on the "Colbert Report" Wednesday night and held her ground firm in the interview.

"You’re an interrupter in a rude way and I’m a violence interrupter in saving lives," Matthews told Colbert.

Matthews appears in a documentary called "The Interrupters," (the newest film from "Hoop Dreams" director Steve James) that will air on PBS’s Frontline on February 14th, 2012.