Superdome in New Orleans on lockdown for security sweeps after deadly truck attack

The Superdome, set to host a College Football Playoff quarterfinal game between Georgia and Notre Dame in the Sugar Bowl on Wednesday night, was on lockdown for security sweeps after a truck plowed into a New Year's crowd about a mile away, killing 10 people and injuring more than 30. People with offices in the Superdome -- including officials with the Sugar Bowl and Sun Belt Conference -- were told not to come into work until further notice. However, there was no immediate word that the Sugar B