President Bush has landed in Israel to take part in celebrations marking the sixtieth anniversary of Israel’s founding in 1948. The trip has been criticized because Bush has no plans to mark what Palestinians call the Nakba, or catastrophe, for the more than 700,000 Palestinians driven from their homes that same year. As Bush arrived, at least five Palestinians were killed in Israeli attacks on the Gaza Strip. The dead included a teenage boy riding his bicycle and another civilian.