US believes Russia may soon launch cyberattacks against critical American infrastructure: source
The Department of Homeland Security says U.S. companies should take steps to protect against a cyber attack.
EXPLAINER: How US rules on international travel are changing
More than a year and a half after COVID-19 concerns prompted the U.S. to close its borders to international travelers from countries including Brazil, China, India, South Africa, the United Kingdom and much of Europe, restrictions are shifting to focus on vaccine status.