World Oct 01 Tillerson says U.S. has direct channels to talk to North Korea By Christopher Bodeeen and Matthew Pennington, Associated Press
Science Sep 30 What a North Korea hydrogen bomb would do to the Pacific Ocean and space stations Here’s a closer look at what a hydrogen bomb could mean for sea creatures, fisheries, astronauts and even Google Earth. By Nsikan Akpan
World Jan 06 Watch 3:18 North Korea’s claim of H-bomb spurs wave of condemnation, skepticism North Korea declared on state television that it had made its first test of a hydrogen bomb. The announcement was condemned around the world, including by China, an ally of the North. Meanwhile, the U.S. and South Korea expressed skepticism… By PBS News Hour
World Jan 06 Watch 8:42 How should the world respond to North Korea’s bombshell claim? Gwen Ifill talks with former Obama administration official Wendy Sherman and Siegfried Hecker, former director of the Los Alamos National Laboratory, about why we should be worried about North Korea’s purported test of a hydrogen bomb, how world powers should… By PBS News Hour
World Jan 06 North Korea claims successful hydrogen bomb test, but nuclear experts are skeptical Hours after South Korea officials detected an "artificial earthquake" Wednesday, North Korea said it successfully tested a "miniaturized" hydrogen bomb. By Joshua Barajas