Advertisement, a New York financier long accused of molesting dozens of girls, was arrested on Saturday and charged with sex trafficking by federal prosecutors, an extraordinary turn of events in a long and sordid criminal case. Two people with knowledge of the charges said on Saturday night that had been arrested in the New York area and was in federal custody. He is expected to appear before a federal magistrate on Monday, more than a decade after he first gained notoriety with lurid accusations that he had paid dozens of girls for sexual massages in Florida.Mr. Epstein, 66, had avoided...…Advertisement, a New York financier long accused of molesting dozens of girls, was arrested on Saturday and charged with sex trafficking by federal prosecutors, an extraordinary turn of events in a long and sordid criminal case. Two people with knowledge of the charges said on Saturday night that had been arrested in the New York area and was in federal custody. He is expected to appear before a federal magistrate on Monday, more than a decade after he first gained notoriety with lurid accusations that he had paid dozens of girls for sexual massages in Florida.Mr. Epstein, 66, had avoided...WW…