Officials prepare for potential cybersecurity threat as tensions grow with Iran
01:38
Police across the U.S. are stepping up security as Iran threatens “harsh retaliation” after its top general was killed in a drone strike. The Department of Homeland Security says there are no “specific, credible” threats in the U.S., while some experts fear a possible cyberattack. Protesters demonstrated against war with Iran in a number of American cities.Jan. 4, 2020
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