Shortly before 9:30 a.m. one day last week, five well-dressed young Arabs walked into the consular section of the Saudi Arabian embassy in Paris.
There, in a now familiar ritual of terror, they pulled out automatic weapons and grenades and barricaded themselves inside the embassy with 15 employees whom they seized as hostages and threatened to kill if authorities would not accede to their demands.
The latest act of violence by Palestinian guerrillas took place on the anniversary of the Munich massacre, in which members of a fedayeen organization called Black September killed...