This op-ed was originally published on TomDispatch.com on July 24, 2018.

July 1 marked the 50^th anniversary of the nuclear Nonproliferation Treaty (NPT) opening for signature. With near-universal membership, the NPT is widely recognized as one of the most successful treaties to date and the cornerstone of nonproliferation and disarmament efforts, but ensuring that it remains so for the next 50 years should not be taken for granted.

UN Secretary-General Calls for JCPOA Implementation

UN Secretary-General Antonio Guterres said the nuclear deal with Iran is at a “crossroads” and expressed his deep regret over U.S. President Donald Trump’s decision to withdraw from the agreement and reimpose sanctions.

This op-ed originally appeared in TIME, Jun. 13, 2018.

The handshake between President Donald Trump and North Korean leader Kim Jong Un will go down in history. But it’s not yet clear if the summit will produce an equally historic outcome on denuclearization.

This op-ed originally appeared in the Bulletin of Atomic Scientists

Ahead of US President Donald Trump’s summit with North Korean leader Kim Jong-un, we spoke with young people around the world who saw hope in the summit, and a chance to advance their own work—including the reunion of families divided by conflict, the peaceful reunification of the Korean Peninsula, and a negotiated agreement that would lead toward the denuclearization of North Korea.

On the morning of June 12, 1982, as the sun shined down on the green grass in Central Park, people began to gather carrying signs for nuclear disarmament. Throughout the morning, buses arrived from around the country. By the afternoon, nearly every blade of grass was covered. Citizens filled second, third, fifth, sixth, seventh, and Madison avenues. By mid-afternoon, the police estimated that over 750,000 people were in Central Park demanding an end to nuclear weapons. By the end of the day, that number had swelled to 1 million.

The International Atomic Energy Agency (IAEA) released its quarterly report on Iran’s nuclear program June 6, and, unsurprisingly, the report found that Iran is complying with its commitments under the multilateral deal known as the Joint Comprehensive Plan of Action (JCPOA).