Ahmad Mukhtar is a producer for CBS News based in Toronto, Canada. He covers politics, conflict and terrorism, with a focus on news from Canada and his home nation of Afghanistan, which he left ...

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Birds, the warm-blooded and feathered vertebrates, are being used to put romantic partners to the test. A relationship experiment dubbed the "bird theory" is making the rounds on social media. It ...

One of the latest relationship tests to go viral is the “bird theory,” racking up millions of views on social media. It’s based on a theory developed by couples researcher John Gottman about the ...

President Trump's comments about restarting weapons tests are not likely to lead to mushroom-cloud explosions over the New Mexico desert or seismic shaking underground in Nevada, according to the ...

A ghost of the Cold War is rising between the world’s superpowers, just in time for Halloween. In the wake of Russian President Vladimir Putin bragging about his country testing both a nuclear-powered ...

The decision could have huge ramifications. The U.S. hasn't conducted such a test in decades. MARTÍNEZ: So how would a test like that be done? Let's ask NPR science and security correspondent Geoff ...

The president's announcement that the U.S. would resume tests leaves questions. President Donald Trump raised questions Wednesday night about a decades-old U.S. prohibition on testing its nuclear ...

Though the country’s nuclear arsenal has undergone no explosive testing for decades, federal experts say it can reliably obliterate targets halfway around the globe. By William J. Broad President ...

Experts warn that Vladamir Putin's claims have not been independently verified. Earlier this week, Russian President Vladimir Putin revealed that his government has finalized testing of a new nuclear ...

DUBAI, United Arab Emirates (AP) — President Donald Trump’s comments Thursday suggesting the United States will restart its testing of nuclear weapons upends decades of American policy in regards to ...