iTunes user agreement prohibits WMD design

Colin Barras of New Scientist stumbled across the following odd bit in the End User License Agreement (pdf) -- you know, the legal document you pretend to have read when you install a software update -- for iTunes 7:

Licensee also agrees that Licensee will not use the Apple Software for any purposes prohibited by United States law, including, without limitation, the development, design, manufacture or production of nuclear, missiles, or chemical or biological weapons."