CNN REPORTS: Seventy-two people have been charged in an online global child pornography ring, a federal law enforcement source said Wednesday. The official said 52 of those charged have been arrested.  The charges stem from an investigation launched in December 2009 that targeted more than 500 individuals around the world allegedly participating in Dreamboard, a private members-only online bulletin board operated to promote pedophilia and encourage sexual abuse of very young children, according to the Justice Department.

Watch live video of the Justice Department announcement on the arrests at CNN.com.