Britain is preparing to administer the first doses of AstraZeneca's coronavirus vaccine Monday.
MoreThe Kremlin has said it does not rule out delays to the completion of the Nord Stream 2 pipeline in light of the threat of new U.S. sanctions.
MoreJames Lewis, vice president at the Center for Strategic and International Studies, said the attack may end up being the worst to hit the United States, eclipsing a 2014 suspected Chinese infiltration.
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