Stacy Librandi was new to disaster relief when she arrived in Haiti in 2010. She walked onto the Port-au-Prince airfield and looked out at the sea of people in front of her. It looked like its own city: a crowd of a thousand buzzing and sweltering in the Caribbean heat, living in tents and haphazardly stacking mass amounts of supplies—food, water, clothing, medical aid—along the tarmac.  It was late January, and the catastrophe of the magnitude 7 earthquake was unfolding in Haiti.  Librandi,