Three days after an Internet video surfaced showing North Carolina Rep. Bob Etheridge in a physical confrontation with a young man, the lawmaker said he is "profoundly" sorry for the tussle on a Washington street.

Etheridge, a Democrat, is seen in an amateur video grabbing the wrist and neck of an unidentified young man after the man approached the congressman and asked if he supported the "Obama agenda."

"I apologize for my actions," Etheridge told reporters during a press conference Monday. "They were unacceptable"...