With a message aimed at the heart of the U.S. nuclear command, Archbishop Edwin O’Brien of Baltimore July 29 called for a world free of the threat of such weapons.

PSR member and advocate Dr. Barbara Warren on KUAT, Tucson’s PBS station with a commentary on the Comprehensive Test Ban Treaty and nuclear disarmament.

An op-ed coauthored by Dr. Barbara Warren of Arizona PSR.

G8 countries have agreed in principle to incorporate a phrase calling for efforts toward the early enactment of the Comprehensive Test Ban Treaty (CTBT) in a joint statement at a G8 summit in July in Italy, senior government officials said.

U.N. Secretary General Ban Ki-moon yesterday urged the international community to "seize the current moment" by bringing the Comprehensive Nuclear Test Ban Treaty into force.

The UN Security Council on Friday unanimously adopted a resolution condemning "in the strongest terms" a recent nuclear test conducted by the Democratic People's Republic of Korea (DPRK) and imposing new sanctions.

In high-rise offices along the Danube, scientists riveted to computer screens "listen" to sounds no one can hear, "feel" every rumble in the Earth, "sniff" global skies for exotic gases — on alert for signs of a newborn atomic bomb.

President Obama told a huge crowd in Prague last month that he is committed to “a world without nuclear weapons.’’ On Tuesday, he is expected to deliver that message from the Oval Office, with a little help from four elder statesmen of the nuclear non-proliferation movement – including two former Republican secretaries of state.

In an Obama administration characterized by youth, they are a Cold War throwback, the aging arms-control experts who haggled with Soviet officials over nuclear weapons and testing. Suddenly, arms control is back.

The Obama administration Thursday proposed a $140 million budget cut for Los Alamos National Laboratory in 2010, a 7 percent reduction in the nuclear weapons laboratory's budget. Sandia National Laboratories, New Mexico's other major National Nuclear Security Administration, escaped the budget knife, seeing a cut in nuclear spending but offsetting increases in energy research as the new administration shifts priorities.

In 2008 the Congress established a bipartisan commission to review the strategic posture of the United States. The commission's findings released today lack the vision necessary to begin immediate and sharp reductions in nuclear weapons by all states that possess them.

The destruction one nuclear bomb can wreak is more than horrifying, says megachurch pastor Rob Bell of Grandville, Mich. It's an insult to God. "Nuclear weapons are a direct affront to God's dream of shalom for the world," Bell said Tuesday. "Life is beautiful, and nuclear weapons are ugly."

The Preparatory Committee for the 2010 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will hold its third session from 4 to 15 May at United Nations Headquarters in New York.

After World War II -- although it became an economic power -- Japan, as the country that experienced nuclear devastation firsthand, has been steadfast in its commitment to stopping the spread of nuclear weapons.

Earlier this month in London, Presidents Obama and Medvedev issued an historic joint statement announcing that they had committed their two countries to achieving a nuclear free world.

A letter to the editor on President Obama's recent nuclear policy statements by Jason Chao, M.D., president of Northeast Ohio PSR.

During their recent meeting in London, President Barack Obama engaged Russian President Dmitri Medvedev in groundbreaking efforts to achieve “a nuclear [weapons] free world.” PSR applauds the presidents of both countries for their commitment to this essential goal. In his speech in Prague on Sunday, April 5, President Obama went on to lay out a bold agenda to turn that goal into reality.

U.S. Secretary of State Hillary Rodham Clinton predicted on Friday that the United States and Russia will complete a new strategic arms reduction treaty by the end of this year and that Moscow and Washington can find common ground on other issues.

At a time when lab officials are celebrating the past, PSR and its allies are looking to the future. Despite Los Alamos National Laboratory's continued reliance on nuclear weapons work, PSR and others are suggesting that it is time to retool the lab in order to address the real national security threats that have surfaced since the end of the Cold War.