Fox News commentator and author Bill O'Reilly, left, and actor Rob Lowe on the set of National Geographic Channel's "Killing Kennedy," in Richmond, Va. (AP Photo/National Geographic Channel, Kent Eanes)

Photo by: Kent Eanes

Fox News commentator and author Bill O'Reilly, left, and actor Rob Lowe on the set of National Geographic Channel's "Killing Kennedy," in Richmond, Va. (AP Photo/National Geographic Channel, Kent Eanes)