Even relatively inexpensive drones can provide valuable intelligence to units on the battlefield. "This is our task," a Ukrainian drone surveillance unit member says. "We sit the whole day and watch."

Delta-8 is a hemp product designed to get users high, but misleading labels or added chemicals have caused people to get sick. And a lack of federal regulation or guidance has states stepping in.

Pope Francis, 85, acknowledged he can no longer travel like he used to because of his strained knee ligaments, saying his weeklong Canadian pilgrimage was "a bit of a test."

Though doctors and advocates have helped speed up access to the antiviral pills – of which the U.S. has enough to treat 1.7 million people – health providers are few and forms are still required.