The Trump administration’s latest travel ban is back in U.S. federal court. The Fourth Circuit, based in Virginia, and Ninth Circuit, based in San Francisco, are hearing cases challenging the latest executive order banning immigrants and refugees from six Muslim majority countries from entering the United States. Joining the fray are 162 technology companies, whose lawyers collectively filed an amicus brief to both courts. Amazon, eBay, Google, Facebook, Netflix, and Uber are among the companies urging federal judges to rule against the executive order, detailing why it is unjust and how it would hurt their businesses.