The latest edition of the Egyptian magazine Al-Ahram Al-Arabi has confirmed what many in the West have suspected for a long time: that Yasser Arafat personally directed the Black September terrorist organization that claimed responsibility for the 1971 murder of Jordanian Prime Minister Wasfi at-Tal, the 1972 massacre of Israeli athletes at the Munich Olympics, and other atrocities. The Cairo newspaper quotes a new book by PLO leader Marwan Kanafani, “Years of Hope,” to be published soon. There have also long been claims that Arafat’s longtime deputy Mahmoud Abbas, who is still widely known in the Middle East by his...