President Donald Trump and Kristi Noem have launched a new app called 'CBP Home' as a substitute for the CBP One app, encouraging illegal migrants to 'self-deport' back to their countries. The app allows users to register their 'intent to depart' and potentially preserve their ability to return legally in the future. The move is part of the administration's efforts to restore integrity to the immigration system. The Trump administration has been facing pressure over the pace of 'mass deportations' promised during the campaign.