According to the article, 'Scary Science' from the magazine Popular Science, there exists current or future scientific endeavors and innovations that should send a chill down our spine. The author listed:

1. nuclear fusion - the possibility of terrorists using fusion technology to detonate bombs from mobile suitcases
2. bringing soil samples from Mars - and therefore alien viruses
3. hybrid beetle cyborgs - beetles remotely controlled which can act as spy devices
4. 'love drug' - a drug that makes you part your money to complete strangers
5. 'smile police' - a behaviour recognition software that rates 'smiles'

Personally, I find the notion of using bugs as surveillance devices most terrifying. Leave the insects alone!

What technology or scientific achievements do you think humankind should avoid? or most creepy?