This technology invades your mind and creates thought crimes. [Below comments by YouTube poster.] FEMA's Mobile Mind Screening Checkpoints informational video. Just look at how happy those people are.
At the next large event coming to you, watch out for these trailers. They can be setup at airports, concerts, arenas, etc. Anywhere they want. Gee, look at what your tax dollars do for you!
They make this look so good, that they never focus on how you lose your rights and freedoms.