NEW YORK, (AP) -- In a new afterword to his controversial "Palestine Peace Not Apartheid," former President Carter criticizes the lack of "balanced debate" in the U.S. about the Middle East and warns officials against being "seen as knee-jerk supporters of every action and policy" of the Israeli government. Carter's book, a best-seller first published last year, accuses Israel of harshly mistreating the Palestinians in the West Bank and Gaza. Carter has said that conditions there merit the word "apartheid," associated with the former system of racial segregation and oppression in South Africa. Jewish groups and some fellow Democrats strongly...