At the time, is there even scientific data of the current virus available to make sure we take the right course of action? And it takes us like months to know how it transmit and how to avoid it and what vaccine to use. If we have to follow scientific data of the current pandemic we would've already up in arm calling the government useless.

Fauci might have some regret, but i still maintain the world took the right action at the time. Everyone is an expert in hindsight.