According to Barton Gellman, writing in the March 23rd edition of the Washington Post, al Qaeda leaders, long known to covet biological and chemical weapons, have reached at least the threshold of production and may have manufactured some of them. This according to a newly obtained cache of documentary evidence and interrogations recently conducted by the U.S. government. Gellman describes the al Qaeda biochemical weapons program as being more advanced than originally thought, and included the ability to produce their own low-grade anthrax.