I thought we were told the Soviet nuclear materials were “secured” in the 1990s. I think what that meant is that most of them were moved from surrounding countries to Russia and placed under guard. But first of all, there may have been some unaccounted for. And second of all, it doesn’t much matter if they are under guard in Russia if there are corrupt Russian authorities stealing and trying to sell them, which apparently is what is happening:

Criminal organizations, some with ties to the Russian KGB’s successor agency, are driving a thriving black market in nuclear materials in the tiny and impoverished Eastern European country of Moldova, investigators say. The successful busts, however, were undercut by striking shortcomings: Kingpins got away, and those arrested evaded long prison sentences, sometimes quickly returning to nuclear smuggling, AP found.

Moldovan police and judicial authorities shared investigative case files with the AP in an effort to spotlight how dangerous the nuclear black market has become. They say the breakdown in cooperation between Russia and the West means that it has become much harder to know whether smugglers are finding ways to move parts of Russia’s vast store of radioactive materials — an unknown quantity of which has leached into the black market…

The most serious case began in the spring of 2011, with the investigation of a group led by a shadowy Russian named Alexandr Agheenco, “the colonel” to his cohorts, whom Moldovan authorities believe to be an officer with the Russian FSB, previously known as the KGB. A middle man working for the colonel was recorded arranging the sale of bomb-grade uranium, U-235, and blueprints for a dirty bomb to a man from Sudan, according to several officials. The blueprints were discovered in a raid of the middleman’s home, according to police and court documents.

I always find it depressing to think that after all the heroic efforts and relative success fighting nuclear proliferation and nuclear terrorism over the decades, it would only take one incident to bring it all crashing down.

There is a slightly comical side to this otherwise terrifying story. All the U.S. headlines are predictably about Islamic State. But in this story, the bad guys are the sellers – Russian and Moldovan gangsters. The buyers were not actual Islamic State, but FBI agents posing as Islamic State.