“Because we didn’t have that national response, tech companies stood up and filled the gap,” Howard said. “But that also allows Apple and Google to set the policy. So instead of the policy being driven at a national level, it’s being driven by the tech companies. That’s a question that we in the United States need to ask ourselves, is that where the policy should be driven?”
Google and Apple built a system to let people know if they've come in contact with someone who has covid-19. Many Americans still don't know it exists.