Since it is Memorial Day weekend…
“The Legacy of the Thresher”. This is (according to the YouTube notes) an old “CBS Reports” special from 1964. (The USS Thresher was lost April 10, 1963.)
Of possible amusement value to some folks: this features a very young Dan Rather.
Bonus video: this is a little shorter, if you’re pressed for time on this Saturday. It also fits in thematically with Lawrence’s Battleswarm post today.
From the Department of the Navy and the US National Archives: “To the Shores of Iwo Jima”.