10 Most Horrifying Technologies In Star Trek

10. Ship's Sensors (And Tricorders)

This technology is so low on this list because it doesn't necessarily need to be used for evil, and Starfleet (generally) only uses it for self-defense or to help people, however, why does no one seem to find it weird that the bridge crew can just always ask the computer where anyone is at any given time?

It's been shown that the ship's sensors are capable of pinpointing a single person's exact location even among billions of others on an entire planet. This already seems like a massive invasion of privacy, even before you remember that the sensors don't just say who you are, they can show your species, sex, everything that you're carrying, and every particle of matter that makes up your body!

Oh, and they also keep a sensor log of every molecule in the ship at all times.

Think of Big Brother but instead of watching you through a webcam, they can find you anywhere on the planet and have the ability to transport you directly into a prison cell. Totally not something that could be exploited...