Businessman Howard Hughes arrived in the late 1960s and purchased many casino hotels, as well as television and radio stations in the area. Legitimate corporations began to purchase casino hotels as well, and the mob was run out by the federal government over the next several years. The constant stream of tourist dollars from the hotels and casinos was augmented by a new source of federal money from the establishment of what is now Nellis Air Force Base. The influx of military personnel and casino job-hunters helped start a land building boom which is now leveling off.