http://www.fas.org/blog/secrecy/2010/10/invention_secrecy_2010.html
"There were 5,135 inventions that were under secrecy orders at the end of Fiscal Year 2010, the U.S. Patent and Trademark Office told Secrecy News last week. It’s a 1% rise over the year before, and the highest total in more than a decade." <more> Article contains link to list from 1971. T