This file is a work of a sailor or employee of the U.S. Navy, taken or made as part of that person's official duties. As a work of the U.S. federal government, it is in the public domain in the United States.
== Summary == {{Information |Description=U.S. Navy Lt. David Ridings, the navigator on board fast attack submarine USS Columbus (SSN 762), explains the day-to-day activities aboard the submarine to Baltimore Ravens inside linebacker Bart Scott and Green B
