Beginning in 2012, Hansen tried to regain access to secrets by seeking employment at DIA and two other intelligence agencies, in one case offering to spy as a double agent for China—an indication that his ties to Chinese intelligence were known. He also contacted a member of Congress on the House Permanent Select Committee on Intelligence and offered to work as a staff member in charge of intelligence issues. The FBI missed the signs Hansen was a spy for two years and did not open its investigation of Hansen until 2014, waiting four more years before arresting him.