Minuteman Project

The Minuteman Project is an activist organization started in August 2004 by a group of private individuals in the United States to extrajudicially monitor the United States – Mexico border's flow of illegal aliens. Founded by Jim Gilchrist and Chris Simcox, the name derives from the Minutemen, militiamen who fought in the American Revolution. Wikipedia*

On the C-SPAN Networks:
Minuteman Project has hosted 1 event in the C-SPAN Video Library; the first program was a 2006 Rally.