Ted Kennedy has called Nantucket Sound near his Massachusetts estate “a national treasure” — but that didn’t stop the senator from having oil dumped from his yacht into its waters. A local photographer spotted an oil slick coming from Kennedy’s yacht Mya as Kennedy and his guests left the vessel in a launch following a race that ended in Hyannis, the Cape Cod Today newspaper reported. The lensman was so shocked that he rowed his dinghy out to question the crew member left aboard the yacht. He asked the crewman, “What the hell are you doing?” The crewman said that...