People can generally spot when videos of famous politicians giving speeches are actually AI-generated deepfakes. But we have more trouble discerning counterfeits from reality when listening to audio or reading supposed text transcripts.

“Audio deepfakes are, in my opinion, a little more dangerous in the current time because visual deepfakes are still harder to create,” says Aruna Sankaranarayanan at the Massachusetts Institute of Technology.

Sankaranarayanan and her colleagues collected text transcripts, audio and video of political speeches…