(It is an established historical fact that the American military as well as civilian intelligence were operating covertly in Cambodia years prior to the secret bombing campaign and the public incursion. SOG -- the Studies & Operations Group -- was a joint command that undertook secret missions inside Cambodia beginning not later than 1967, according to the book Sideshow, a leading historical work on the war in Cambodia.)
Command of all cross-border operations was under the US Army, Commander of MACV-SOG during that time. It was also well established that all cross border insertions into Cambodia and Laos were by helocopter, not boats, as boats had been discarded as an insertion vehicle in the mid 1960s.
If the Admiral had known about such operations, he is now no longer under any known secrecy prohibitions and should tell what he knows.
If Kerry had skippered a boat into Cambodia, he would have been under operational control of Command and Control South (CCS), a unit of MACVSOG. His boat, and all weapons would have had all identification removed. He would have required a top secret clearance. He would have known exactly what his mission was. Where did he go? What troops did he insert? What was their mission? When did he extract the troops? How did he receive his orders? Who did he report to during the mission?
I was there during that time. I doubt it!