Containment can work—but you have one chance to get it right.
You _have_ to close the borders, in and out, as the _first_ step.
Screening is a “half measure”.
As they said in Breaking Bad, “no half measures”.
My rant continues... :-)
Remember that Barry Goldwater quote:
“Extremism in the defense of liberty is no vice. Moderation in pursuit of justice is no virtue.”
Extremism fighting a virus is no vice either. Moderation fighting a virus is not a virtue.