I call this the pool theory (hat tip to Merlin Mann). The problem as you said is that each state followed its own lockdown policy, yet travel between states is

I call this the pool theory (hat tip to Merlin Mann). The problem as you said is that each state followed its own lockdown policy, yet travel between states is unregulated. It's as if we had a giant pool, and said, "you can pee in this area, but only this area." Not realizing how after a certain amount of time, all the water was tainted with urine.