Trumps Logic is, 14day Lag, so when he reopens, then we are already over the peak, it may seem to be at it's worst, but 14days later hopefully if his experts have it right, it'll be dropping fast and the extra cases will be small. Got to balance the needs of the many against the needs of the few. 14 Day Lag, makes this confusing and easy to manipulate, UK put there measures in 14days late, can't believe there that stupid, based on what he public saw, gets it over with quicker this way, never about the lives.
Everyones already got it well 80% before it slows down, some air traffic isn't going to matter to the USA, Exporting the Virus to countries quite early on in there outbreak could push them up though, giving them less time to react and get hospitals / ventilators ready. No holidays, to anywhere that hasn't been virus ridden, incase they lock down while there, is my advice. ( won't be many soon I guess, Tenerife they avoided it ? )