Neighbors look on as a house burns during a controlled burn in Escondido, Calif., Thursday, Dec. 9, 2010, where authorities recently found the largest supply of homemade explosives in a single location in the United States. The house was rented by an out-of-work software consultant who allegedly assembled an astonishing quantity of bomb-making materials that included chemicals used by Middle Eastern suicide bombers. (AP Photo/Denis Poroy)