A tweet can reveal your location, an Apple Watch monitors your health, a grocery chain loyalty card allows the supermarket to track your purchases. All of this constitutes what Michael Chertoff describes as “digital exhaust”—data that we constantly and unconsciously emit. The challenge this poses is how to protect that data in an increasingly interconnected world.
US President Donald J. Trump is expected to meet his Russian counterpart, Vladimir Putin, at the Group of Twenty (G20) summit in Buenos Aires later this week. Is that a good idea in light of Russia’s latest aggression toward Ukraine and the somewhat stymied success of past meetings between the two leaders? In an interview with The Washington Post , Trump left open the possibility that he might, after all, cancel the meeting over the incident in the Kerch Strait. “Maybe I won’t even have the meeting,” he said.