Leaders of Israel's Arab community including Israeli Knesset members said Wednesday they'll head to Gaza on a boat laden with humanitarian aid to defy the blockade of the narrow strip. A spokesman for Israel's Islamic Movement, said scores of Israeli Arabs intend to head for the Gaza Strip on Sunday setting out from the port of Jaffa.In Jordan meanwhile some twenty parliament members walked out of a Lower House meeting on Wednesday protesting a decision to put off a debate on sending a relief ship to Gaza. Earlier this week the leader of Jordan's Moslem Brotherhood movement announced Tuesday that a group of Jordanian Islamists will set sail for the Gaza Strip from the Jordanian port of Aqab