The U.S. and Spain are inching toward an agreement to finish cleaning up radioactive waste that remained after a B-52 crashed in 1966. Will it serve as a template for future cleanups?
The Marshall Islands archipelago was the site of dozens of nuclear weapons tests between 1946 and 1958. Now it's suing nuclear nations in multiple courts.
The United States has been in high-stakes negotiations with Iran in recent months over the rollback of Iran's nuclear program. The agreement would place severe restrictions on Iran’s ability to accrue and enrich uranium beyond a specified level for ten years.