Jerusalem's unity is important to its development, Prime Minister Binyamin Netanyahu said during a special Knesset session to mark Jerusalem Day.Netanyahu told the Knesset that Jerusalem is undergoing developments that have the power to change the whole city, including: The rehabilitation of the train to Jerusalem which will connect with the light rail at the city's convention center; a new technological center that is being built at Hadassah Hospital; and the building of a national library.The prime minister added however that Arab neighborhoods in Jerusalem are still lacking things such as schools, and promised to change this.