In mathematics, proofs can be written down and shared. In cryptography, when people are trying to avoid revealing their secrets, proofs are not always so simple—but a new result significantly closes ...

US Vice President JD Vance arrived in Azerbaijan on Tuesday to sign a complex strategic partnership with Azerbaijan President Ilham Aliyev, the day after visiting Armenia on a historic trip set to ...

After the collapse of the USSR in 1991, both US and Russian authorities agreed to hold to the restrictions already in place from previous treaties. Since then, ...

COMMENTARY: Democracy’s most responsible voters need to become their own news fact-checkers. Here are some tips on how to start.

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