Moreover, this is a much better way to monitor the border than to build and maintain walls. These dogs and the drones are largely out of site. I do envision one

Moreover, this is a much better way to monitor the border than to build and maintain walls. These dogs and the drones are largely out of site. I do envision one kind of gun being put on these drones: a flare gun. This provides migrants with the information they've been spotted and provides them the opportunity to go back. You can also imagine text-to-speech speakers being mounted on the dogs capable of translating to Spanish. I can also see these dogs being used for rescue - capable of bringing badly-needed food and water. We needn't loose sight that these are human beings, regardless of their legal status.