On Capitol Hill today, members of Congress honored the dead and wounded from Saturday's shooting in Tucson. Minority leader Nancy Pelosi said her colleague Gabrielle Giffords provided a model for appropriate behavior. Republican majority leader Eric Cantor said Giffords was not the only target, calling the shooting an "attack on the very essence of democracy and representative government." Behind closed doors, members were briefed on security measures when they're dealing with their constituents at home. Jennifer Steinhauer reports on Congress for the New York Times.