The U.S. Air Force began deploying the Global Positioning System (GPS) nearly 50 years ago, critical infrastructure to both the military and economy.
Al Roker will sometimes ditch a car and take public transit just to get more steps in: Walking ‘probably helped save my life’
Al Roker isn’t the biggest fan of typical workouts, but gets his 10,000 steps in daily and even takes public transit sometimes to walk more.