Do fake images need to look convincing to be convincing?

Christye Sisson, a professor at Rochester Institute of Technology, is working with the Department of Defense to help build a sophisticated tool that can identify fake images. She and her students act like the bad guys — doing painstaking work to develop the most convincing fake images they can. They’ve learned a lot about what it takes to fool people, including that maybe they don’t need to work so hard, at least on social media.