Nuclear threat
If it Weren't for Israel, ISIS Might Have Armed Itself With Nukes
ISIS eventually occupied the site meant to host Syria's nuclear reactor. If Israel hadn't destroyed it seven years earlier, ISIS might have been able to inflict destruction on an almost unimaginable scale.
Kremlin: Nuclear War Will Take All to 'Heaven or Hell'
Dmitry Peskov, Vladimir Putin's press secretary, said Monday that the Russian president did not specifically mean that Russians would go to heaven but was speaking in an "allegory," against the backdrop of President Donald Trump's threat that the U.S. would withdraw from the 1987 Intermediate-Range Nuclear Forces Treaty with Moscow.
When Will the World End? Doomsday Clock Raises Concerns
Nuclear disaster isn't the only event that experts fear.
Expert: Peace Possible If U.S. Accepts Nuclear N. Korea
Diplomacy can work with North Korea, but there's a catch.
China Talks Nuclear Threat With New South Korean Leader
The two leaders agreed to work toward peace on the Korean peninsula.
South Korea Says Trump Sees 'Urgency' of Nuclear Threat
North Korean leader Kim Jong Un said his nuclear-capable country was close to test-launching an intercontinental ballistic missile.