The Trump administration’s Environmental Protection Agency solicited the advice of a controversial toxicologist, Edward Calabrese, to consider changes to how it regulates radiation.
By Ferenc Dalnoki-Veress, The Conversation
North Korea strongly criticized South Korea over ongoing U.S.-South Korean military exercises on Thursday and said it will not return to talks with its rival until Seoul resolves its grievances.
By Kim Tong-Hyung, Associated Press
Secretary of State Mike Pompeo said Sunday that the United States will need to "provide security assurances" to North Korea's Kim Jong Un if the adversaries are to reach a nuclear deal.
By Ken Thomas, Associated Press
President Donald Trump warned Iran on Wednesday against resuming its nuclear weapons program, a day after announcing that he was withdrawing the U.S. from the landmark Iran nuclear deal.
By Catherine Lucey, Josh Lederman, Associated Press
By Mari Yamaguchi, Associated Press
Leaders from the three countries held their first three-way summit in more than two years, demonstrating a spirit of cooperation.
By Josh Lederman, Matthew Lee, Associated Press
If President Trump follows through on his threat to pull the U.S. out of the Iran nuclear deal on May 12, the rest of the world will be thrust into uncharted territory.
By William J. Kinsella, The Conversation
During the Cold War, the U.S. built nuclear weapons at a network of secretive sites across the nation. Some are still heavily polluted and threaten public health today.
By Helen Branswell, STAT
With this week’s bellicose boasting about who has the bigger red button on his desk, an alert Thursday from the Centers for Disease Control and Prevention felt more than a bit on the nose.
By Kamala Kelkar
The chilling sound of a nuclear warning siren echoed in Hawaii on Friday, renewing a monthly exercise that has not been in place since the end of the Cold War.
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