Travel to and from doesn't lower the number of infections in the US, assuming prevalence is about equal on the two continents.
That was a direct response to the question. It's not the total number that matters, it's the rate.
Depends on how imaginative/paranoid you are. It sure seems odd that this week has included an oil price war between Saudi Arabia and Russia, a pandemic declaration, and now the biggest disruption of international travel/commerce since WW2. https://twitter.com/RusEmbUSA/status/1237048071223160833
If I would have my tin foiled hat on I would say something else is going.
We also found out this week that a man that is showing signs of dementia is all but certain to win the democratic primary and face Trump for the presidency. Weird times.