Power lines hang from a pole in a Brooklyn neighborhood on March 15 in New York City. As U.S. officials step up sanctions on Russian intelligence for its interference in the 2016 elections, members of the Trump administration have accused Russia of a cyber-assault on the domestic energy grid and other key parts of America’s infrastructure.

Power lines hang from a pole in a Brooklyn neighborhood on March 15 in New York City. As U.S. officials step up sanctions on Russian intelligence for its interference in the 2016 elections, members of the Trump administration have accused Russia of a cyber-assault on the domestic energy grid and other key parts of America’s infrastructure.