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Nuclear Modernization Talk at BASIC Panel

Linton Brooks and I discussed nuclear modernization at a November 13 panel organized by BASIC. . By Hans M. Kristensen BASIC invited me to discuss nuclear weapons modernization with Linton Brooks at a...

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B61-12: Contract Signed for Improving Precision of Nuclear Bomb

The first contract was signed yesterday for the development of the guided tail kit that will increase the accuracy of the B61 nuclear bomb. This conceptual drawing illustrates the principle of adding a...

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New Detailed Data For US Nuclear Forces Counted Under New START Treaty

Air Force personnel perform New START Treaty inspection training on a Minuteman III ICBM payload section at Minot AFB in 2011. Nearly two years into the treaty, there have been few reductions of U.S....

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New Report: Trimming Nuclear Excess

The US and Russian nuclear arms reduction process needs to be revitalized by new treaties and unilateral initiatives to reduce nuclear force levels, a new FAS report argues (click on image to download...

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Options for Reducing Nuclear Weapons Requirements

By Hans M. Kristensen With the ink barely dry on the New START Treaty, Jeff Smith at the Center for Public Integrity reports that the Obama administration has determined that the United States can meet...

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Non-Strategic Nuclear Weapons Discussed in Warsaw

The conference was held in this elaborate room at the Intercontinental Warsaw hotel. By Hans M. Kristensen In early February, I participated in a conference in Warsaw on non-strategic nuclear weapons....

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New Report: Reducing Alert Rates of Nuclear Weapons

click on image to download report . By Hans M. Kristensen The United States and Russia have some 1,800 nuclear warheads on alert on ballistic missiles that are ready to launch in a few minutes,...

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Meteors Against Nukes

The meteor impacted near large Russian nuclear weapons facilities.. By Hans M. Kristensen When the news media reported that a meteor had exploded over Chelyabinsk in Russia, the location name sounded...

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Additional Delays Expected in B61-12 Nuclear Bomb Schedule

The B61-7, which completed a limited life-extension program in 2006, will be retired by the more extensive B61-12 program. By Hans M. Kristensen The National Nuclear Security Administration (NNSA)...

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(Still) Secret US Nuclear Weapons Stockpile Reduced

The United States has unilaterally reduced the size of its nuclear weapons stockpile by nearly 500 warheads since 2009. By Hans M. Kristensen The United States has quietly reduced its nuclear weapons...

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Invitation to Debate on Nuclear Weapons Reductions

Nuclear Debate at the Big 1800 Tonight . By Hans M. Kristensen Tonight I’ll be debating additional nuclear weapons reductions with former Assistant Secretary of State Stephen Rademaker at a PONI event...

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US Navy Instruction Confirms Retirement of Nuclear Tomahawk Cruise Missile

The U.S. Navy has quietly removed the nuclear Tomahawk cruise missile from its inventory, a new Secretary of the Navy Instruction shows. By Hans M. Kristensen Although the U.S. Navy has yet to make a...

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Q&A Session on Recent Developments in U.S. and NATO Missile Defense with Dr....

Dr. Yousaf Butt, a nuclear physicist, is professor and scientist-in-residence at the James Martin Center for Nonproliferation Studies at the Monterey Institute of International Studies. The views...

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CNN Publishes Map Based on FAS Research

FAS supplied the data for a new interactive web site published by CNN. The site enables you to get a quick overlook of the nuclear arsenals of the world’s nine nuclear weapon states. Check it out here.

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New START Data: US Reductions Finally Picking Up; Russia Flatlining

By Hans M. Kristensen After two years of stalling, the latest New START Treaty aggregate data released today by the State Department indicates that U.S. warhead reductions under the treaty are finally...

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US Nuclear War Plan Updated Amidst Nuclear Policy Review

By Hans M. Kristensen At the same time the White House is finishing a review of nuclear weapons policy, U.S. Strategic Command has quietly put into effect a new strategic nuclear war plan. The new...

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$1 Billion for a Nuclear Bomb Tail

The U.S. Air Force plans to spend more than $1 billion on developing a guided tailkit to increase the accuracy of the B61 nuclear bomb. The cost is detailed (to some extent) in the Air Force’s budget...

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Better Understanding North Korea: Q&A with Seven East Asian Experts, Part 1

Editor’s Note: This is the first of two postings of a Q&A conducted by the Federation of American Scientists regarding the current situation on the Korean Peninsula.  Author responses have not been...

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Better Understanding North Korea: Q&A with Seven East Asian Experts, Part 2

Editor’s Note: This is the second of two postings of a Q&A conducted by the Federation of American Scientists regarding the current situation on the Korean Peninsula. Read the first part here....

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Chinese ICBM Force Leveling Out?

By Hans M. Kristensen The size of China’s intercontinental ballistic missile (ICBM) force appears to be leveling out instead of increasing. During Thursday’s Senate Armed Services Committee hearing on...

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