Tracking cell phones is much easier than communicating with them. Don't need large constellation with big satellites to do that. There was story on here recent

Tracking cell phones is much easier than communicating with them. Don't need large constellation with big satellites to do that. There was story on here recently, https://news.ycombinator.com/item?id=38322966 https://news.ycombinator.com/item?id=38322966, about company that launched a constellation of small satellites. The US has lots of radio surveillance satellites that likely can track phones. Also, phone companies sell phone location data.