Apple + Google will provide more security and optionality than the government would. And big tech is the only option for effective widespread tracing.
From Stratechery by Ben Thompson on 2020 04 14
Critically, it is not reflective of tech companies: what has been increasingly whitewashed in the story of California and Washington’s success in battling the coronavirus1 is the role tech companies played: the first work-from-home orders started around March 1st, and within a week nearly all tech companies had closed their doors; local governments followed another week later. This action by local governments was, to be clear, before the rest of the country, and without question saved thousands of lives; it should not be forgotten, though, that executives who listened not to the media but primarily to social and non-traditional media were the furthest ahead of the curve. In other words, it increasingly doesn’t matter who or what the media covers, or when: success comes from independent thought and judgment.