Here is an article from Forbes
"Yesterday (March 18), the Washington Post reported that the U.S. government “is in active talks with Facebook, Google and a wide array of tech companies and health experts about how they can use location data gleaned from Americans’ phones to combat coronavirus.” Right now this would be anonymized, generic scale trends, not tracking specific individual’s “daily whereabouts.”
The idea behind this initial move would be predicting hotspots using “aggregated anonymized data.” That could include density mapping—is social distancing working or are we still seeing too many people in certain places, and where that might be, does it link to infections, how do we react?
We are still at the very earliest stages of this fight. The technologies developed over generations to fight terrorism, serious and organized crime, to safeguard national security and track those that would do us harm, these are now sitting deep within our agencies as a tantalizing security tool that may become the best means we have of tracking this new “invisible enemy"
See my write up for Secure your Internet connection with a VPN