645392 external_news 1615839631 1615839631 If you noticed a Tom Cruise deepfake video making the rounds recently on your social media accounts, you'll want to check out another video — this tutorial on deepfakes (videos that use artificial intelligence to replace the likeness of one person with another) by School of Psychology graduate student Zachary Tidler, who is investigating the phenomenon and the ethical issues raised by them. Here's an earlier story about Tidler's research and how he hopes it leads to more media literacy in the U.S. 

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