"DIFFERENT OPINIONS" Jimmy Carter was on the West Bank today. He met with, and reportedly hugged, a senior Hamas official. He placed a wreath on Yasser Arafat's grave. (One of Carter's hosts helpfully explained that "Arafat's resting place was temporary, and the Palestinians hope to move his remains to Jerusalem one day.") The U.S. government has criticized Carter's determination to meet with Hamas, and Israeli officials are more or less shunning the former President. Carter defends his mission to Hamas in these terms: Carter acknowledged Tuesday he was not on an official mission and had "no authority at all." "I'm...