(28 Aug 1997) English/Nat Palestinian leader Yasser Arafat on Thursday welcomed Israel's lifting of the monthlong siege of Bethlehem. But he warned that Israel now had to end its blockade of the West Bank and Gaza Strip. The closure was imposed after the Jerusalem suicide bombings and bars all Palestinians, including some 100-thousand workers, from entering Israel. Yasser Arafat praised Israel's decision to lift the closure of the biblical city of Bethlehem. But although he said it was a good