That's because the US CDC produced defective test kits and hasn't done enough testing. A tiny nation like SK has tested 30k people while the US has only tested 450+(and each kit costs a patient $3k while it's free or cheap in other countries).

The scientific facts are simple and clear. R0 is between 2 and 3, fatality rate is around 1%.

Even if it's not containable, actions should be taken to buy us more time before an effective vaccine is produced.