The US Department of Justice has unsealed an indictment against former President Donald Trump for allegedly illegally keeping top secret files on US nuclear and weapons programs and defense plans after leaving the White House. The 44-page indictment, voted by a grand jury of citizens in the Southern District of Florida, alleges that Trump "endeavored to obstruct the FBI and grand jury investigations and conceal retention of classified documents" and could put at risk the national security of the United States. The indictment is the latest development in the ongoing investigation into the former president's activities.