A federal judge sentenced four humanitarian-aid volunteers for dropping off water and food for migrants crossing through the desert in southern Arizona Friday. U.S. Magistrate Judge Bernando Velasco sentenced Natalie Hoffman, Oona Holcomb, Madeline Huse and Zaachila Orozco-McCormick to 15 months of unsupervised probation and each will pay a $250 fine. 'The humanitarian work that has ultimately brought us here today will continue to address the border crisis until there are no more deaths,' the statement by the four women read. 'We refuse to stand by and watch silently as the United States becomes more and more deeply authoritarian. This is something that affects and should concern us all.'