Ed Lyman

Senior scientist

Author image
Dr. Lyman received his PhD in physics from Cornell University in 1992. He was a postdoctoral research scientist at Princeton University's Center for Energy and Environmental Studies, and then served as Scientific Director and President of the Nuclear Control Institute. He joined UCS in 2003. He is an active member of the Institute of Nuclear Materials Management and has served on expert panels of the Nuclear Regulatory Commission. His research focuses on security issues associated with the management of nuclear materials and the operation of nuclear power plants, particularly with respect to reprocessing and civil plutonium. Areas of expertise: Nuclear terrorism, proliferation risks of nuclear power, nuclear weapons policy

Subscribe to Ed's posts

Ed's Latest Posts

Nuclear Plant Security on the 15th Anniversary of 9/11: The Need to Remain Vigilant

Although the September 11, 2001, attacks are becoming a distant memory, it would be a big mistake to forget that the danger to the United States from both international and domestic terrorists remains very real today. Unfortunately, U.S. nuclear power plant owners are experiencing collective denial about their facilities’ vulnerability to sabotage attacks that could cause widespread radiological contamination. Read more >

Bookmark and Share

Indian Point and a Victory for Sound Science at the NRC

UCS devotes a lot of ink to criticizing the Nuclear Regulatory Commission (NRC) for making bad decisions that reduce nuclear safety. So it is a refreshing change of pace to be able to praise the agency.  On May 4, the NRC commissioners did the right thing and voted to overturn a ruling by the Atomic Safety and Licensing Board in the Indian Point license renewal proceeding that, had it stood, would have set a terrible precedent for scientific integrity in regulatory decision-making. Read more >

Bookmark and Share

The Perfect Gift for the Nuclear Security Summit

As the fourth and final Nuclear Security Summit convenes today, here’s an idea for a great parting gift that President Obama can offer to the international community. The United States possesses a unique asset that could be used to train nuclear security guards in a realistic setting: the partially built Mixed Oxide (MOX) Fuel Fabrication Facility at the U.S. government’s Savannah River Site (SRS) in South Carolina. Using this complex as an international training center would help strengthen global nuclear security and give new life to a facility that otherwise appears destined for the scrap heap. Read more >

Bookmark and Share

Independent Report Confirms that Downblending and Geologic Disposal is Best Option for Plutonium

Today, UCS is releasing the Phase 2 report of the “Plutonium Disposition Options Independent Assessment” carried out by the Aerospace Corporation. This report, dated August 20, 2015, but only now becoming public, is the second part of a congressionally mandated independent review of the Plutonium Working Group (PWG) report that was released by the Department of Energy in 2014. The PWG was charged with reviewing the options for disposing of tens of tons of plutonium left over from the U.S. nuclear weapons program.

The Phase 1 Aerospace report, which was delivered to Congress in April of this year, analyzed two of the plutonium disposition options that had been studied by the PWG: the MOX fuel option, which is the current baseline, and the “downblend and disposal” option. Read more >

Bookmark and Share

No Rush to Build a U.S. Military Enrichment Plant

A new Energy Department report finds new capacity to enrich uranium for military purposes won’t be needed for decades. Read more >

Bookmark and Share