>Try 100 years
even better
military goes door to door giving citizen tests to all people over 18.
If you fail the test, you go to a school/camp to learn out how the country works.
the implanted device will explode, then get infected, they wont be able to remove all the tiny pieces.
It will keep getting infected no matter what they do.
They will have a sore on their forehead or on their right hand.