How China's satellite navigation technology is challenging U.S. GPS

For decades, the United States has been a leader in satellite navigation technology thanks to GPS. But in 2020, China launched the last satellite needed to complete its own global system called Beidou. Since then, the influence of Beidou has grown, with an estimated 1.1 billion people now using the system. Experts say Beidou underpins not only China's military ambitions, but is also spurring economic growth in the country and increasing its diplomatic leverage.