When the two presidents meet Friday, the world will be looking for clues to the future of the fraught U.S.-Russian relationship. "Putin needs the meeting more than Trump," says one Russia expert.
The renowned Russian cybersecurity firm's anti-virus software is used by millions of Americans. Congress does not want military service members to be among them.
The Soviet Union built research institutes in Siberia as innovation centers during the Cold War. Since then, there's been a brain drain. Tech innovators remain, but some have faced legal challenges.
Some have called the previously seen malware "Petya," though others say it is "a new ransomware that has not been seen before." It has been reported in at least a half-dozen countries.
Security experts estimate it would cost roughly $400 million to replace voting machines and add paper audits. It's about the same amount the Pentagon spent on military bands last year.
Ukraine is concerned about what the Trump administration's efforts to improve relations with Russia will mean for its relations with Washington. Poroshenko wanted to meet with Trump before Putin did.
On assignment in Russia last week, NPR's Mary Louise Kelly wondered if she was being watched. As she was typing, her cursor moved on its own. And why was she referred to a man in a blacked-out Volga?