Sen. Scott Brown (R-Mass.) was sexually abused at the hands of a camp counselor at the age of 10, he says in a new book.

In a new interview with CBS's 60 Minutes, Brown details physical abuse he suffered as a child, and the sexual abuse he says he never reported.

"It was certainly, back then, very traumatic," Brown said in a clip released by CBS today. "When people find people like me at that young, vulnerable age who are basically lost, the thing that they have over you is they make you believe that no one will believe you."

"I haven't told anybody. That's what happens when you're a victim. You're embarrassed, you're hurt," he said.

The interview airs Sunday at 7 p.m.