NAVAL SUBMARINE BASE NEW LONDON, Conn. – U.S. Navy submarines excel at destroying stuff, including things that aren’t enemies. In the past dozen years, Navy subs have banged head-on into such non-belligerents as a fishing trawler, Aegis cruiser, amphibious transport dock, a tanker, and two undersea mountains that had not moved in millions of years.

After each accident, the Navy has vowed to improve navigation skills. While that multi-year program develops, here are some things and places that might suffer a loud meeting with the “Silent Service:”

1. Another U.S. submarine: The surface force is all over smashing into their own, and foreign subs have already done this. They can’t own all the headlines.