Bomb Sat in Fed Building's Lost and Found for 3 Weeks Detroit guard left suspicious package in storage By Rob Quinn, Newser Staff Posted Mar 24, 2011 2:18 AM CDT Updated Mar 24, 2011 4:40 AM CDT 8 comments Comments A Detroit bomb squad officer arrives at McNamara Federal Building. (AP Photo/The Detroit News, Oralandar Brand-Williams) (Newser) – A special training team has been dispatched to a federal building in Detroit to remind security staff that the proper protocol to follow after finding a suspicious package does not involve leaving it in lost and found for three weeks. The bomb squad was called in after staff at the McNamara Federal Building finally X-rayed the package and discovered it contained a pipe bomb, ABC News reports. A union official says the private security guard—who has now been suspended—put the package in storage after discovering it outside the building, which houses the FBI, IRS, and offices for Sen. Carl Levin. The device was detonated and the remains sent to FBI headquarters for testing. "Our priority is determining exactly what it was and who left it," an FBI agent tells the Detroit News.