The incident [Munich massacre] … launched an escalation in Israeli-Palestinian violence all over the world that over time only complicated the search for peace. Yet it is also a world in which former Zionist terrorists such as Menachem Begin and Yitzhak Shamir can become prime ministers, the former signing the first peace treaty between Israel and an Arab state, and one of the three Black September terrorists who survived Munich, Abu Da’ud, was allowed to enter Israel in 1996 in order to attend a PLO meeting in the Gaza Strip that convened to rescind an article in the PLO charter calling for Israel’s elimination.
David W. Lesch
The Arab-Israeli Conflict: A History
Chapter 8: The Road to 1979