A scholar whose research supports private gun ownership has come under fire from critics who question whether he actually conducted a 1997 survey cited in his work. John R. Lott Jr. strongly denies the accusations about his 1998 book, "More Guns, Less Crime." Australian gun-control advocate Tim Lambert, a professor at the University of New South Wales, challenged Mr. Lott to produce records or witnesses to document the survey. "It seems increasingly likely that the... (GunPolicy.org)