Security? Turning your body into a Password?

On page 74 of the Time Magazine with Kennedy and his wife on the Cover to the right:

Begin quote: "The Edible Password Pill"

end quote begin paraphrasing:

Basically what is says is to increase security Motorola has developed an edible password pill. This allows your body to be the password. However, you would have to swallow one pill daily.

end paraphrasing article on page 74.

My thought is that I would be very concerned about nanobots in such a pill that would do more than be a password. It is sort of like all the agreements computer users of all kinds have to agree to without understanding the fine print because they are not lawyers. You don't really know when you are signing your life away without knowing it.

So, though Motorola might be trustworthy others might not be. As it is how do we know water or food manufacturers don't already track us and study us all over the earth in multiple ways already just by adding micro nanobots (that cannot be seen with the naked eye) to our water and food)? So, anytime we ate or drank anything they would be monitoring us in various technological ways. This could be either coming or here already. However, we would never know because nanobots are too small to see with the naked eye. You would have to put all food and drink under a microscope to see nanobots and even then you might not know what you are looking for because they could be disguised as naturally occurring microscopic objects in water or food.

This will be even more of a problem in the future as people are secretly eliminated from the earth without a trace also by this method.

For example, using a metal detector for nanobots in water or food might not be useful because computer chips are mostly made out of silicon. So the moving parts of the nanobots might not have any metal in them at all. Imagine a microscopic  hand calculator with arms or legs or fins that move powered by a small capacitor or batter or even the human body used as a power source for a nanobot.

Also, the body might eliminate nanobots through urine or feces or even sweat glands or water in the eyes too because they are so very very small.