Technologies that can create fake videos are getting more sophisticated. Some even use cutting-edge artificial intelligence. Such tools — which reduce the time, expense and skill needed to doctor digital images — are making it easier to spread disinformation through what are called “deepfakes.” Though internet companies are trying to mount defenses against the the image manipulations, Fulton Schools professor and AI expert Subbarao Kambhampati says the new technology makes it difficult even for trained viewers to tell real from fake images and may eventually make it all but impossible.