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The science pros at TKOR build a PVC slingshot rifle engineered for extreme power, testing its design limits and projectile performance.

WASHINGTON — The U.S. is concealing a longstanding program that retrieves and reverse engineers unidentified flying objects, a former Air Force intelligence officer testified Wednesday to Congress.

Start by thinking about the dilemmas your people will face. by Erin Meyer At the beginning of my career, I worked for the health-care-software specialist HBOC. One day, a woman from human resources ...