The Download: spying on the spies, and promising climate tech

In April 2025, Ronald Deibert left all electronic devices at home in Toronto and boarded a plane. When he landed in Illinois, he bought a new laptop and iPhone. He wanted to reduce the risk of having his personal devices confiscated, because he knew his work made him a prime target for surveillance. "I'm traveling under the assumption that I am being watched, right down to exactly where I am at any moment," Deibert says. Deibert directs the Citizen Lab, a research center he founded in 2001 to serve as "counterintelligence for civil society." Housed at the University of Toronto, it's one of the few institutions that investigate cyberthreats exclusively in the public interest, and in doing so, it has exposed some of the most egregious digital abuses of the past two decades.