Biden: Nuclear 'Armageddon' risk highest since '62 crisis

President Joe Biden addresses the 77th session of the United Nations General Assembly on Sept. 21, 2022, at the U.N. headquarters. How will the US, Europe respond if Vladimir Putin seeks to escalate his way out of a bad situation on Ukraine battlefields. To start with, by doubling down on the tactics that helped put Russia in a corner: more sanctions and isolation for Moscow, more arms for Ukraine. Biden promises a response if Russia uses nuclear weapons. But Western leaders show no signs of matching Vladimir Putin's renewed nuclear threats with potentially escalatory nuclear bluster of their own. (AP Photo/Evan Vucci) President Joe Biden addresses the 77th session of the United Nations General Assembly on Sept. 21, 2022, at the U.N. headquarters. How will the US, Europe respond if Vladimir Putin seeks to escalate his way out of a bad situation on Ukraine battlefields. To start with, by doubling down on the tactics that helped put Russia in a corner: more sanctions and isolation for Moscow, more arms for Ukraine. Biden promises a response if Russia uses nuclear weapons. But Western leaders show no signs of matching Vladimir Putin's renewed nuclear threats with potentially escalatory nuclear bluster of their own. (AP Photo/Evan Vucci)

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Exploring a tunnel deep below Niagara Falls

Turbines that once harnessed the powerful energy of Niagara Falls into a great source of electricity came to a halt years ago. But the secrets deep below the power station are coming to life once again. Visitors can now explore the former cathedral of power and a new tunnel that opens to a spectacular view of the falls.

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