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In a speech on Friday, Democrat Mark Warner, vice chairman of Senate Intelligence Committee, presented what he called “a new cyber doctrine,” advocating not only for a hardening of America’s digital infrastructure but for an approach to cyberwarfare that doesn’t hinge solely on mirroring adversaries’ use of offensive tactics. The U.S. needs to increase its presence on the international stage, argues the Virginia senator, and play a central role in establishing common “rules and norms” for the invisible battlefield—or China and Russia will.