Explainer: Fast-track Deportation at US-Mexico Border Voice of America 05 Aug 2021, 09:35 GMT+10 Amid continuing chaos along the U.S.-Mexico border, the Biden administration has opted to retain a controversial policy that allows rapid expulsion of migrants from the U.S. The policy, first implemented by the former Trump administration, stems from a public health mandate imposed during the COVID-19 pandemic. Migrants are fast-tracked for removal if U.S. immigration officers conclude they do not have a valid asylum claim, a determination made without migrants appearing before an immigration judge. Unaccompanied children who cross the border into the United States are exempted from the policy.