Weren’t the 3 index cases in the US people who had travelled via air overseas; Seattle, New York, and either San Francisco or LA?
I vaguely recall discussion back at the time alone these lines.
But I don’t recall talk about people having to take ‘rona tests prior to flying. I thought the masks were supposed to reduce transmission, but CNN apparently doesn’t think so.
I can’t say I was paying much attention to travel restrictions because I had no reason to travel nor any interest in doing so because of all the crap one has to think about if one is going to travel.