Lee, Eloise. The Department of Homeland Security is buying 450 million new bullets. Business Insider. 2012 Mar 28. Available from: http://articles.businessinsider.com/2012-03-28/news/31247765_1_atk-rounds-bullet. Accessed 2012 Jun 6. Archived by WebCite at http://www.webcitation.org/68DPI6Jgt.

Lee reports an open-ended contract between DHS and the defense contractor ATK for the purchase of up to 450 million rounds of ammunition over five years.