In a move aimed at strengthening its undersea warfare efforts, the Navy has closed the program executive office for undersea warfare and shifted its responsibilities to the program executive office for submarines. Lee Buchanan, the Navy's acquisition executive, announced the change in a March 27 memorandum. Buchanan said the change was made to "further strengthen and focus our undersea warfare efforts across platform, system, and payload boundaries," according to a Naval Sea Systems Command notice released April 1. The new...