A longtime aide to Jimmy Carter has resigned from the Carter Center think tank, calling the former president's new book on Israel and the Arabs one-sided and filled with errors. Kenneth Stein, the Carter Center's first executive director and founder of its Middle East program, sent a letter that bluntly criticized the book to Carter and others. Stein wrote that the book, "Palestine: Peace, Not Apartheid," was replete with factual errors, material copied from other sources and "simply invented segments," according to an excerpt of the letter published by the Atlanta Journal-Constitution. Deanna Congileo, Carter's spokeswoman, said the former president...