Three weeks after the kidnapping of more than 300 Nigerian school girls, the leader of the Islamist group Boko Haram said in a video, "I abducted your girls."

Boko Haram has been attacking what they call western education. In the video, their leader, Abubakar Shekau, linked the abduction to that campaign. "I said Western education should end," he reminded his viewers.

About 53 of the girls are believed to have escaped. Meanwhile, the Nigerian government is being criticized for its failure to free the captured girls.

The campaign to free the girls that began in their home village has now gone global, with the U.S. government offering to help with the rescue.