The NYT has a long article [Supplier Under Scrutiny on Arms for Afghans, By C. J. Chivers, March 27, 2008]on a Miami Beach company that has gotten a big contract from the U.S. government to supply Afghan government forces with ammunition, although it is run by a 22-year-old. (Here's Efraim Diveroli's MySpace profile.) Most of the ammo has turned out to be junk scrounged from ex-Soviet supplies.
What's not explained in the article is: "Who are these people?"