Keith Metz_Porozni demonstrates the Flir One, thermal imaging device of iPhones, during a new product’s viewing at MacWorld in San Francisco, Calif.,
Keith Metz_Porozni demonstrates the Flir One, thermal imaging device of iPhones, during a new product's viewing at MacWorld in San Francisco, Calif., March 26, 2014. (Karl Mondon/Bay Area News Group)