"I was aware of the program, certainly, and involved in helping get the process cleared, as the agency in effect came in and wanted to know what they could and couldn't do," Cheney said.

"And they talked to me, as well as others, to explain what they wanted to do. And I supported it," Cheney said.

ABC asked him if in hindsight he thought the tactics went too far. "I don't," Cheney said.