Three photojournalists spoke about the necessity of documenting humanitarian crises at a Tuesday webinar hosted by the Weatherhead Center for International Affairs. | By Julian J. Giordano By Lily Chen, Elizabeth L. LaDuke, and Sadie J. Winter, Contributing Writers Three photojournalists spoke about the necessity of documenting humanitarian crises, as they often provide the only firsthand account of tragedies, during a Tuesday webinar hosted by the Weatherhead Center for International Affairs.