US intelligence chief: Cyberterror leading threat

WASHINGTON (AP) — The top U.S. intelligence official says cyberterrorism is the leading worldwide threat to U.S. security.

James Clapper is director of national intelligence. He’s telling Congress Thursday that cyberattacks and cyberspying can damage critical infrastructure like power grids. But in prepared testimony, he says advanced cyber-actors like Russia and China are unlikely to launch such attacks unless they are threatened by conflict.