"It's time for Barack Obama to let Hillary Clinton take off her burqa." It's a line that brilliantly managed to belittle our female secretary of state under the guise of supporting her, to offend her and "defend" her at the same time: No wonder the insult that Tina Brown lobbed at the White House two weeks ago continues to echo around Washington. Since Brown wrote her article (snidely entitled "Obama's Other Wife"), even Clinton has been forced to respond.