Facial recognition may help you clear immigration faster. Should you worry about your privacy?

A U.S. Customs and Border Protection officer instructs an international traveler to look into a camera as he uses facial recognition technology to screen a traveler entering the United States on February 27, 2018 at Miami International Airport in Miami, Florida. (Joe Raedle/Getty Images/TNS) *FOR USE WITH THIS STORY ONLY*

Say goodbye to standing in long lines clutching boarding passes and other travel documents. 

Step this way, instead. Look into the camera lens and off you go.