Avatar photoReconverting Iran’s U3O8 to UF6

What do we really know about Iran’s capability to reconvert triuranium octoxide (U3O8) enriched to 20% U-235 back into UF6 feedstock that can be further enriched to produce weapon-grade uranium? Can Iran do it? And if so, how fast? The answer matters considerably, as Iran, Israel, and the P5+1 will make decisions this year, based …

Avatar photoSyria and Sarin

A few thoughts on where we are with the allegations of chemical weapons use in Syria.

Avatar photoGeorge Bunn

George Bunn, a gentle spirit with a fixed resolve to help make the world less hospitable to nuclear weapons, died on Sunday. In an earlier post, I referred to George as a norm builder — one facet of a life well-lived. Some of the others can be found in this obituary released by Stanford University: …

Avatar photoThe Tortoise and the Hare: A Rebuttal

In an earlier post and in an op-ed published by the International Herald Tribune on April 5th, I’ve likened the nuclear competition on the subcontinent to Aesop’s fable about the tortoise and the hare. Here’s the language I used in the IHT piece: Pakistan, whose economy and domestic cohesion are steadily worsening, is the hare, …