This is yet another false choice. I am a programmer and a McCain Republican, and I know for a fact there are ways to use existing technology without violating privacy to dramatically reduce the cost of contact tracing, improve the coverage, and reduce the time. As long as issues like this are cast as black/white, either/or, us/them binary decisions, it will be very hard to find solutions that resolve the legitimate concerns that are raised. I so miss Senator McCain. He was exceptionally adept at seeing through false choices like this one to find creative "maverick" solutions and to brings the parties together that could do it.