When news of the Department of Justice’s zero-tolerance policy for unauthorized entry into the United States came out in mid-2018, a group of moms in Queens sprang into action. They created an organization called Immigrant Families Together, aimed at reuniting mothers held at Eloy Detention Centre in Arizona with the children taken from them by the government. “Split at the Root” follows one of these women: Rosayra, an asylum seeker from Guatemala who had crossed into the US with her two sons. The documentary, directed by Linda Goldstein Knowlton, is a heartbreaking reminder of the cruelty of these separations, showing that reunification is often only the beginning of a long journey for the families torn apart. Rosayra’s path toward gaining asylum shows the Catch 22 many face: One must be in imminent danger to be admitted as a refugee but must also remember to get a police report from the country they were leaving; immigrants must prove they will not be a burden to the country but are not allowed to work.