Washington, D.C. ? Missile technology, fighter jet parts, night vision goggles and other U.S. wartime equipment increasingly are being illegally smuggled to potential adversaries, such as China and Iran, the federal government said Thursday.

Last week, two Utah men were arrested for allegedly trying to sell parts over the Internet for F-4 and F-14 fighter jets – which are only flown by Iran. The week before, two engineers were indicted in San Jose, Calif., on charges of stealing computer chip designs intended for the Chinese military.

Government lawyers and investigators Thursday described a growing number of unauthorized exports that could be dangerous if the parts and supplies end up in the hands of terrorists or hostile nations.