Former President Jimmy Carter has announced he will change a sentence in his recent book, “Palestine: Peace Not Apartheid,” that indicates Palestinians should not be expected to end suicide bombings until Israel withdraws settlements from the Occupied Territories. Speaking at Brandeis University in Boston Tuesday, Carter said the sentence was worded in a “completely improper and stupid way” and would be changed in new editions. But Carter refused calls to retract other claims in his book, including his comparison of Israeli practices in the Occupied Territories to South Africa under apartheid.