Improper use of the stimulant Adderall is becoming a bigger problem among young adults — a growing percentage say they use the drug without a prescription, a new study finds.
With technology that had never been seen before, the U.S. Air Force went to amazing lengths to keep the stealth F-117 Nighthawk program under tight wraps during the 1980s. As the program matured into an operational force, deploying F-117s in small numbers became a real possibility. But maintaining the aircraft’s veil of secrecy while doing so was uncharted territory. Enter the “Klingon Cloaking Device,” a ruse that would help prove such deployments could work.