FILE - In this Dec. 12, 2008 file courtroom drawing by artist Janet Hamlin, reviewed by the US military, Canadian-born accused terrorist Omar Khadr attends a pre-trial session in Camp Justice on the U.S. Naval Base in Guantanamo Bay, Cuba. The Canadian government was in court Tuesday morning, May 5, 2015, seeking to block the release on bail of former Guantanamo Bay inmate Omar Khadr while he appeals his conviction for war crimes in the United States.(AP Photo/Janet Hamlin, Pool, File)