Bonnie Castillo is the executive director of National Nurses United and of the California Nurses Association/National Nurses Organizing Committee. Before being named as executive director, she was the director of the Registered Nurse Response Network (RNRN), a disaster relief program run by NNU that places registered nurse volunteers where they are needed after man-made and natural catastrophes. She has coordinated RN volunteers to help in the aftermath of the 2010 Haiti earthquake, Typhoon Haiyan, hurricanes Katrina, Harvey and Maria, and elsewhere. - from Wikipedia