This week at the UN, despite overseeing the obligatory handshake between the leaders of Israel and Palestine, he failed to show evidence of even a whiff of progress.

• 本周在联合国，尽管奥巴马监督了以色列和巴勒斯坦领导人尽义务式的握手，他却没能再展现两国关系进步的丁点起色。