@cbssundaymorning: Prince Charles seemed “upbeat” and “giddy” following Princess Diana’s death, Charles Spencer, the late princess’ brother, told Mark Phillips. In his new book, “Swan Song,” Earl Spencer writes that then-Prince Charles may have felt free to pursue Camilla: “Why would somebody feel giddy at that time?” When asked about these allegations, Buckingham Palace referred to a statement it released earlier this week saying that the King is “mindful that the pain of fraternal grief can cloud reason, affect judgment and colour memory in ways others do not recognise, even many years after such a loss.” Watch more of Charles Spencer’s conversation with Mark Phillips on Sunday. #princessdiana #charlesspencer #kingcharles #royalfamily