The Strategic Security blog of the Federation of American Scientists is obligatory reading for military affairs wonks (I’m mentioning no names here) and usually doesn’t have much to interest those who think that a MANPAD might be a kind of apartment. However, Z Word readers in the latter category ought to take the time to read this post.  It summarizes the content of a paper - written by  the post’s author and a colleague - that analyzes  current knowledge of Iran’s recently revealed Fordow uranium enrichment facility and attempts some intelligent guesswork about what purpose it might serve within the broader context of Iran’s nuclear program. The last line of the post goes as follows:

It is getting harder and harder to give Iran the benefit of the doubt.

Go and read the rest yourself.