The panelists talked about the history of air and space surveillance technology. They discussed personal insights and expertise on how that technology has been used, including locating terrorist camps, analyzing terrain, and counting missile silos. Mr. Earnest moderated the panel. Following prepared remarks and discussion, panelists responded to questions from the audience.

Mr. Powers is the son of U2 pilot Francis Gary Powers, who was shot down over the Soviet Union in 1960. Mr. Poteat is a former CIA scientific intelligence officer.