Who is the all-time leading rusher in NFL history?

ORG XMIT: NY156 FILE - This Oct. 27, 2002, file photo shows Dallas Cowboys running back Emmitt Smith celebrating after breaking the all-time rushing record in an NFL football game against the Seattle Seahawks, in Irving, Texas. Jerry Rice and Emmitt Smith are heavy favorites to be among the 15 finalists Friday, Jan. 8, 2010, for the Pro Football Hall of Fame. (AP Photo/Tony Gutierrez, File) 08062010xBRIEFING 08072010xSPORTS 08072010xBRIEFING