At the 1972 Munich Olympics, two members of the Israeli team were killed, and nine members taken hostage by Palestinian terrorists. A botched German rescue attempt led to the death of the rest along with five of the eight hijackers. The three surviving Palestinians were released by the West German authorities eight weeks later without charge, in exchange for the hostages of hijacked Lufthansa Flight 615. The Israeli government responded with an air raid, a raid on the PLO headquarters in Lebanon (led by future Prime Minister, Ehud Barak) and an assassination campaign against the organizers of the massacre.