Command Sergeant Major Eric L. Haney is a former member of the United States Army's counter-terrorist unit, the 1st Special Forces Operational Detachment-Delta , more commonly known as Delta Force. In recent years he has been writing on terrorism, guerrilla warfare, and special operations. Wikipedia*
On the C-SPAN Networks:
Eric Haney has one video in the C-SPAN Video Library; the first appearance was a 2002 Speech.