April 19, 2003: US Forces in Iraq Seize Trailer

US authorities in Iraq seize a trailer at a checkpoint in the northern city of Mosul. The government will later claim that this trailer, as well as another one that is discovered on May 9 (see May 9, 2003), is a mobile biological weapons lab. [Houston Chronicle, 5/9/2003; ABC News, 5/21/2003]