Kirkpatrick Sale is an independent scholar and author who has written prolifically about environmentalism, luddism, technology and political decentralism. He has been described as "a leader of the Neo-Luddites" and "the theoretician for a new secessionist movement. Wikipedia*
On the C-SPAN Networks:
Kirkpatrick Sale has one video in the C-SPAN Video Library; the first appearance was a 2001 Booknotes.