Principal Deputy Under Secretary of Defense for Policy Ryan Henry (right) holds up part of a mock nose cone assembly for a Minuteman missile during a press briefing with Air Force Secretary Michael W. Wynne at the Pentagon in Arlington, Va., on March 25, 2008. Henry and Wynne described to reporters how some non-nuclear nose cone assemblies were mistakenly sent to Taiwan in 2006 and the immediate effort to regain control of the assemblies once the errant shipment was discovered.