While flash mobs clad in wrap dresses dominated New York City in honor of DVF's eponymous fragrance, Diane, the designer had a subtler approach. She appeared at Bloomingdale's 59th Street location to chat with editors about its much anticipated release. "I felt like young girls have never been told the power of a fragrance," the designer observed. "For centuries, fragrance has been a weapon of seduction, and it feels like -- except ...