Newly obtained government documents show how the Trump administration’s now-blocked policy to separate all migrant children from parents led social workers to frantically begin tracking thousands of children seized at the southern border and compile reports on cases of trauma.

Internal documents show Health and Human Services staff members were unprepared for the unprecedented number of suffering young children transferred to their custody.

Materials were obtained through a Freedom of Information Act request submitted to Health and Human Services by the American Immigration Council, the National Immigrant Justice Center, Kids in Need of Defense, the Women’s Refugee Commission, and the Florence Immigrant and Refugee Rights Project. All have experience providing legal services for migrant children.