Libertas was a Squid. I think that's about as close as you'll get here, unless I'm mistaken.
That's normal. At any given time, the CG has about as many members as the NYC police department, and we're deployed around the world. So there aren't very many former Coasties in any given crowd of people. I'm the only one for miles around here.
However, one of the first phone calls made after the 9-11 attacks was from the Navy's Commandant to the Coast Guard's Commandant. He said that if the CG needed any of his ships, he'd supply them. To this day, many Navy ships fly the Coast Guard Ensign (not the Coast Guard flag and vastly different), which indicates that there is a CG petty officer (E-4 through E-9) or Commissioned Officer aboard who can board any vessel in US waters at any time, which the Navy cannot. Such boarding officer can take CG and Navy personnel with him and give them orders to do what may become necessary, including "shoot to kill." The Coast Guard's primary responsibility is law enforcement and it is NOT subject to the
posse comitatus law.