Chris Sherman, reporter, Mexico City, and San Francisco-based investigative reporters Martha Mendoza and Garance Burke broke the news that the U.S. government held a record 69,550 infants, children and teenagers in custody over the past year, published as part of a collaboration with PBS’s “Frontline.” The story and documentary were the result of a collaboration initiated by Burke and led by international investigative editor Ron Nixon. The joint project built on years of Burke’s work with Mendoza and many colleagues on the immigration beat team and in Latin America. Together, they contniued to press for access inside shelters, interview kids who had been detained, document the trauma risks, and garner interviews with officials responsible for the situation.