A lot of people are worried about a legally enforced plan to implant RFID chips into everybody as part of the new social engineering program known as Obamacare. Being British I'm not making any comment on that as it does not concern me.
There is a lot of bad information about RFID chips on the web. The government have not been liaising with aliens to develop this technology, it is terrestrial and very simple. Disabling an RFID chip in a credit card, company ID card or passport can be achieved by hitting the chipped item with a hammer, piercing it with a nail or a screwdriver or sticking it in the microwave for thirty seconds. Obviously those items are useful to us and it would be counter productive to destroy them. Simply putting the suspect item in a Faraday cage (i.e. wrapping it in metal foil) will stop it exchanging signals with monitoring devices.
In the case ofÂ implanted chips, you would not want to hit yourself with a hammer or cook yourself but it is still easy and very cheap to deal with RFID chips.
Rare earth magnets called Neodymium magnets will nullify chips and can be bought online from retailers like CMS magnets or magnets4less (both Tx) or emagnets or first4magnets (UK should these products suddenly become unavailable in the USA - ) Neodymium magnets are known as the strongest in the world and the kind available for less than $1 from these suppliers can lift 10lbs of steel.
Locate the chip on your body and use surgical tape to fix a magnet in place with the north pole to your skin. A compass will tell you which side of the magnet is north. For chips close to the skin surface leave the magnet in place for 24 hours, for deeper chips (in you back, thigh, butt or implanted in large muscle masses) for 48 hours. This is probably far longer than needed but no sense taking chances.
And a final reassurance, I don't have financial interest in magnet suppliers or manufacturers :-)
The truth is not out there