Unlike millions of ordinary Americans, the President of the United States didn´t have to test his patience with an error-prone website or spend hours on the phone with a volunteer ´navigator´ in order to sign up for new health insurance. A White House official confirmed Monday that Barack Obama simply dispatched his aides to the Washington, D.C. insurance exchange´s office, where they filed his papers in person--while Obama himself luxuriated in his annual Hawaiian vacation with his family. ´His situation is unique,´ the official insisted. ´The president couldn´t have used the DC exchange´s website because the databases these sites use