Attorneys are still trying to reach the parents of 337 migrant children who were separated at the US-Mexico border under the Trump administration, down from 368 in June, according to a federal court filing Wednesday.... Since June, the parents of 31 of those children whose whereabouts had been previously unknown have been found.... As part of the effort, the Department of Homeland Security has established a process for accepting parole requests, the Department of Health and Human Services is working on facilitating services to support families and the State Department is developing a streamlined system for processing in-country travel document...