"Charles Cox" wrote in message

It's happened to me a couple of times in Boston harbor. Not military
ships, but a cruise ship and LNG tanker both had security
zones around them. Since there is no warning on the VHF,

I can't address the cruise ships, but when those LNG tankers are moving in
Boston Harbor everybody in the world is notified. Twice. For days in
advance, and while moving. Those LNGs don't sneak up on anyone.

JG