TRIVIA: Tony mentions to Ziva he is afraid she will use the 'Vulcan death grip' on him. In this same episode, Tim Russ has a guest role, he is known for playing the Vulcan officer Tuvok in Star Trek: Voyager. Tony calls it wrong though, it is a neck pinch, rendering someone unconscious, not dead. In the Star Trek episode "The Enterprise Incident," Kirk engages in espionage against the Romulans. Spock pretends to be a traitor and when Kirk attacks him Spock uses "a defensive technique that leaves Kirk "dead." The Romulan commander asks what he did and Spock tells her that he instinctively used "the Vulcan Death Grip." Later in the episode we learn that is no such thing.
Edit