Saving face, with the help of science

I love it when life imitates art. Back in 1997, John Travolta and Nicolas Cage starred in a movie called Face/Off. Here’s the plotline: A revolutionary medical technique allows an undercover agent to take the physical appearance of a major criminal and infiltrate his organization. Of course, the heavy (Travolta), being no fool, applies the same technique to his own bad self to take on the identity of the undercover good guy (Cage). The film then disintegrates into a bloody, tortured affair of one mistaken identity after another, with car chases and gun battles until finally, surprise surprise, the good guy wins.