I can't read the article linked in the first post unless I agree to pay $7.50 a month. That is not in the cards.

Keeping drones out of airports and military bases sounds like a good idea to me. I don't want to be in an airliner that sucked a drone into an engine.

As for the ships at Shanghai, sometimes GPS messes up. About 3 years ago my husband and I were taking a trip to a small city in SW Missouri to view work on a slate roof. At a point where we should have been on a four-lane highway, our GPS had us on a dirt road in a trailer park.
We put it down to a glitch.