Saudi Arabia could have some form of uranium enrichment within the kingdom under a proposed nuclear deal with the United States. That's according to congressional documents and an arms control group. Both U.S. Presidents Donald Trump and Joe Biden tried to reach a nuclear deal with the kingdom to share American technology. Nonproliferation experts warn any spinning centrifuges within Saudi Arabia could open the door to a possible weapons program for the kingdom. The kingdom's assertive crown prince has suggested he could pursue a nuclear weapon if Tehran obtains an atomic bomb.

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President Donald Trump has declined to say whether he plans to resume underground nuclear detonation tests. He had seemed to suggest that was a possibility in a social media post this week. The post raised concerns the U.S. would begin testing nuclear weapons for the first time in three decades. The president told reporters, "You'll find out very soon" when he was asked about it. Trump said, "We're going to do some testing" and "Other countries do it. If they're going to do it, we're going to." But he refused to offer more details. He spoke aboard Air Force One as he headed to Florida on Friday for the weekend.

Hiroshima is marking the 80th anniversary of the U.S. atomic bombing of the western Japanese city. Many aging survivors express frustration over growing global support for nuclear weapons as deterrence. With survivors' numbers rapidly declining and their average age now over 86, this anniversary is a significant milestone. The bombing on Aug. 6, 1945, killed 140,000 people and a second bomb on Nagasaki killed 70,000 more. Representatives from 120 countries including Russia and Belarus attended the ceremony Wednesday. Survivors and their families also paid tribute to the victims at the peace memorial park.