WASHINGTON — Three days before the mass shooting in Tucson reignited the gun-control debate, the White House renominated a Chicago law enforcement official whose actions have riled the gun rights movement to head the country's firearms enforcement agency. Andrew Traver — who would head the Bureau of Alcohol, Tobacco, Firearms and Explosives — leads the agency's Chicago office, where he has been tagged an anti-gun zealot by some gun rights advocates who oppose his... (GunPolicy.org)