The post title refers to one of the most chilling Star Trek (TOS) episodes; which depicted a society ("Yonada") that microchipped its citzens as such. The chips (called an "instrument of obedience" in the episode) were hooked into a central computer (called the "Oracle"), and had the capacity to kill if they detected politically incorrect thoughts or behaviour.
Computing technology has advanced far more rapidly than Gene Roddenberry had anticipated (TOS had only reached 3 1/2 diskettes by the 23rd century), so "instruments of obedience" are likely only a few years away.
The question is: do we really want to live on Yonada??
I heard that there are such things as these and people are saying that they are bad which I think is true. If you look it up there are whole bunch of pictures of people that have a bar code on a head of a person. Trust me its probably real.