37 arrested at Warren AFB Raid finds illegal workers at largest missile-defense unit By Hector Gutierrez, Rocky Mountain News February 27, 2003 Nearly 40 illegal workers were arrested Wednesday at the Francis E. Warren Air Force Base in Cheyenne, home to the country's largest strategic missile-defense unit. The raid was one of the biggest in recent memory involving national security in the region. The presence of unauthorized workers at the Inter-Continental Ballistic Missile unit, or ICBM, was an egregious security breach in which foreigners were able to penetrate a powerful U.S. military installation, officials said. The Denver District of the...