If you want to worry about anyone in America today, worry about the Grand Princess pax. They're going to have to get lucky to have no one with corona on that ship. Now they could get lucky. It could be the Westerdam. But those odds are well below 50%. And if somebody does test positive, what the heck are the authorities going to do? First, I am sure they'll get them off the boat somewhere. But where? And who? And do they let folks testing negative fly home and self-quarantine (I think they have to, but do they let them leave immediately?). It may not be pretty. Fingers crossed for the best.
Personally, I think the world needs to stop cruising for about 2 months. I'm sorry about that, but I think it's best.