Federal officials have arrested an Army intelligence analyst who boasted that he had given a classified US combat video and top secret State Department records to whistleblower site Wikileaks. Brad Manning is alleged to have leaked a video depicting a fatal helicopter attack on Iraqi civilians, including Reuters journalists. A former hacker said he turned Manning in out of concern for US national security. According to Manning’s family, the intelligence analyst is being held in custody in Kuwait but has not yet been charged. Wikileaks has claimed it does not know the identity of the person who leaked the video.