Of course it’s potentially rife with abusive power. And we need to make sure that this is a very temporary thing (admittedly it’s hard to put the genie back in the bottle). That said, you can’t advertise to the dead. There’s a very real need here, and some governments are off doing this on their own anyway. I do believe that at least Apple and Google combined can come up with a solution that has some amount of privacy protection that a state actor would never bother with themselves.