Nanobots (microscope sized )

Now, you are going to say that I've really gone crazy! But, what if the Elite invented a very small robot, or nanobot, and injected it into your bloodstream when you get your next injection, and when the time is right, they send a signal to your body activating these little devils to do their programmed duty? This duty could be either beneficial or detrimental - who knows? There are frequent scares about anthrax and other biological agents threatening our lives. Could this be an opportunity to inject these nanobots into your bloodstream? Now if you don't believe me, do a web search on Nanobots, or check out one of these sites: (http://www.usatoday.com/life/cyber/tech/review/crh275.htm) or (http://www.spacedaily.com/news/nanotech-02a.html) or (http://www.expressnews.ualberta.ca/expressnews/articles/news.cfm?p_ID=2275