Inside the military's response to the Baltimore bridge collapse

Inside a Baltimore cruise terminal last week, dozens of military personnel were spread out across a wide room under bright lights, with workers bent over computers across rows of tables hastily arranged as workstations. 

This is the bustling operations center for the Unified Command leading the response to the total collapse of the Francis Scott Key Bridge late last month. 

Officials are working day and night to rid Baltimore of the bridge scraps and reopen the vital national port on a tight schedule...