 New York Times | Immigrants face checks on way back to Mexico Sacramento Bee A US immigration agent bounded up the steps of a bus about to cross the US-Mexico border recently and demanded to see the papers of all those aboard. "Papers!" he shouted, eyeing passengers as he walked up and down the aisle. ... Even immigrants returning to Mexico on their own face US scrutiny Changes in Mexico impacting U.S. immigration policy | Analysis Returnees now face scrutiny at US, Mexico border |