Nuclear Energy Videos
North Korea makes new threat as Trump arrives in South Korea
President Trump said he hoped for diplomatic progress with North Korea in a meeting with South Korea's president as North Korea promises to increase their nuclear power.
'Soonish' co-author on emerging technologies that could change the world
Cartoonist Zach Weinersmith discusses his new book, "Soonish," which highlights 10 emerging technologies that could change the world.
Obama 'surprised and deeply humbled' by 2009 Nobel Peace Prize
Oct. 10, 2009: President Obama said, "I do not view it as a recognition of my own accomplishments."
Bob Woodruff discusses 'An Inconvenient Border: Where China Meets North Korea'
ABC News' Bob Woodruff discusses exploring North Korea's 880-mile border with China for a documentary.
How hackers tap into tech's vulnerabilities from cars to voting machines
At the annual DEF CON event in Vegas, hackers showcased their skills for breaking into, and defending, electronic devices and systems.
'GMA' Hot List: Nikki Haley says North Korea does 'not need to be a nuclear power'
Plus, an 8-year-old leukemia survivor meets his bone marrow donor live on "GMA" and tells her, "Thank you for saving my life."
Nikki Haley speaks out on North Korea, Trump's UN address
The U.S. ambassador to the United Nations shares more details on "GMA" about the Trump administration's strategy for North Korea and whether she thinks President Trump's use of nicknames like "Rocket man" for Kim Jong Un will work on the world stage.
Trump gives an 'America first' speech to the United Nations
ABC News' political team analyzes Trump’s first address to the U.N. General Assembly
Hurricane Irma forces temporary closing of 2 Florida nuclear plants
The two plants in Turkey Point and St. Lucie are protected by 6 feet of concrete and reinforced steel with three backup power sources, but have never been tested by a storm of Irma's strength.
Nikki Haley to UN on North Korea: 'Enough is enough'
America's ambassador to the United Nations told the Security Council today that its incremental approach toward getting North Korea to stop its nuclear program has failed.