Intrusions on our liberties cannot end soon enough

Los Angeles Mayor Eric Garcetti had a message for people who gathered in groups over the weekend at beaches and parks.
“We know who you are,” he said.
What?
What does that mean? Is the city conducting surveillance of residents by capturing the location data from cell phones? Is the mayor demanding records from phone companies?
On March 12, my own cell phone received a text informing me that Mayor Garcetti “shared updates about the City’s actions to help protect the public