Five years ago an elderly Los Angeles woman who had agreed to move out of her daughter's apartment bought a handgun. She cleared the background check, passed the safety test and practiced on targets at the local shooting range. Then she shot and killed her daughter and her daughter's fiance -- my brother David. As someone who has lost a member of my family to gun violence, I see the new federal legislation to limit gun manufacturers' liability as unconscionable beyond my ken. But what troubles me most is that the gun control lobby is pouring its resources into battles...