Silicon Valley oligarchs have plenty of reason to lose sleep these days, but the looming prospect of Nov. 1 has to be high on the list. That’s the day that executives from Google, Facebook, and Twitter are scheduled to testify in back-to-back hearings before Senate and House committees investigating Russian interference in the 2016 election.

Get in-depth coverage of current and future trends in technology, and how they are shaping business, entertainment, communications, science, politics, and society.