The danger, Jin argues, is that training gives people a hammer, and suddenly everyone looks like a nail. When a TSA agent at an airport spots a flash of "anger" on a traveler’s face, are they seeing a potential terrorist, or simply a tired parent frustrated by a long line?
Raised and pulled-together eyebrows, with tensed lower eyelids. Surprise: Arched eyebrows and a dropped jaw. microexpressions training
Microexpressions training can help individuals: The danger, Jin argues, is that training gives