Heard of this before. Its not going to stop your average sniper and will overall be ineffective. Its not future technology either, its been in existence since the 1950's/1960's.
First dream was a sex dream. I don't remember the second one. And the third I don't remember either. If you're curious... I wake up a lot of times at night and go back to sleep, usually happens around 3 times each night. :o