Las Vegas (AP) -- The US nuclear weapons agency says it is planning to build a plant that produces key nuclear arms components and is considering putting it in the Y-12 National Security Complex in Tennessee.
The National Nuclear Security Administration held public hearings on its plan in Las Vegas Tuesday.
The plan is part of an overall move to upgrade and consolidate the eight sites around the nation that support the American Nuclear Weapons Complex. It is also part of a move to replace aging nuclear weapons.
The plan is to be complete by 2030.
Critics say there's no urgency to replace US nukes and that replacing them may even make them more unreliable.
The group called the Union of Concerned Scientists also says a replacement program could lead to the return of full-scale nuclear tests, which America abandoned in 1992.
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