On the 4th of July, we're broadcasting our conversation with writer Nathaniel Philbrick about George Washington and Benedict Arnold. Arnold has long been regarded as the archetypal American traitor. But before he betrayed his country, he was actually one of Washington’s favorite and most trusted generals. In his book, Philbrick examines the complicated relationship between the two men. Ultimately, he says, it’s about their different reactions to a dysfunctional Congress that was driven by self