The Importance of Foreign-born Scientists and Engineers to the Security of The United States, Statement of William A. Wulf, Ph.D., President National Academy of Engineering The National Academies before the Subcommittee on Immigration, Border Security, and Claims Committee on the Judiciary U.S. House of Representatives for The Hearing on "Sources and Methods of Foreign Nationals Engaged in Economic and Military Espionage." 15 September 2005.