The US on a federal level 'has done nothing and is all out of ideas' as the memes go, except perhaps suppressing states to do their own testing. This is in a way inverse of what happened in China and arguably worse because in China when the federal-level authority caught wind of the scale of the problem they dropped the hammer so hard the whole world is still ringing. The US on the other hand knows there's an epidemic in progress and the CDC flip-flops from 'haven't been to china, won't get tested' to 'the virus is endemic, won't get tested' in 48h.