(14 Sep 1997) Hebrew/Eng/Nat Thousands of Israelis on Saturday marked the fourth anniversary of the Israel-PLO peace agreement with a rally against Prime Minister Benjamin Netanyahu and his policies. Present at the rally in Tel Aviv was Leah Rabin, widow of former Prime Minister Yitzhak Rabin, who was assassinated in 1995 for his peacemaking efforts with the Palestinians. The anniversary of the so-called Oslo accord was also marked on the West Bank. But there, Palestinian youths protested