Russian hackers have been scanning the systems of energy companies and other critical infrastructure in the United States, and state-sponsored hacking by Russia presents a “current” threat to American national security, a top FBI official told lawmakers on Tuesday. “The threat from Russia in a criminal sense, in the nation state sense, is very, very real – and current,” said Bryan Vorndran, an assistant director in the FBI’s cyber division, during a hearing before a U.S. House of Representatives panel. In the weeks since Russia’s unprovoked attack against Ukraine, the White House and the Justice Department have been warning U.S....