Balance of Terror is what I consider, without a doubt, one of the best Star Trek episodes, and in that I include every series, ever put on celluloid. The strategy, the action, the tension, the character interaction, coupled with Mark Lenard's impeccable performance, all of this comes together so flawlessly in this episode. I do have a question. In the scene near the end when they're waiting one another out and running "silent", why are they whispering? Now, running silent I can understand. Shut down and try to eliminate all energy signatures, but the whispering I just don't get. Does it add to the suspense? J.