DHS chief Wolf expounds on efforts to counter cyber, other threats from China, Russia and Iran

Acting Homeland Security Secretary Chad Wolf, in a speech to the Homeland Security Experts Group, offered some of his most extensive public comments to date on how DHS -- through the Cybersecurity and Infrastructure Security Agency -- is confronting cyber and other challenges related to China, Russia and Iran.

Wolf -- who became acting secretary in November after serving as Under Secretary for the Office of Strategy, Policy, and Plans -- today described the thinking around a first-ever terror advisory...