Keith Collins

When President Donald Trump entered office, Twitter was a political tool that had helped get him elected and a digital howitzer that he relished firing. In the years since, he has fully integrated Twitter into the very fabric of his administration, reshaping the nature of the presidency and presidential power. Early on, top aides wanted to restrain the president’s Twitter habit, even considering asking the company to impose a 15-minute delay on Trump’s messages.

Many people realize that smartphones track their locations. But what if you actively turn off location services, haven’t used any apps, and haven’t even inserted a carrier SIM card? Even if you take all of those precautions, phones running Android software gather data about your location and send it back to Google when they’re connected to the internet. Since the beginning of 2017, Android phones have been collecting the addresses of nearby cellular towers—even when location services are disabled—and sending that data back to Google.