In the State of the Union address given at the end of January 2006 , it was stated that  Technology was of utmost priority , especially Nanotechnology.
The following articles all deal with Nanotechnology. ( meaning tiny technology).
Nanotechnology creates the most pervasive of all surveillance systems since it contains integrated circuits ( IC )  and are mostly invisible to the naked eye.

Specknetted Smart Dust -- Feb. 21, 2006  by Bruce Schneier
"Our world must already be flooded with specknetted smart dust. There is no privacy, certainly not in the audio range, and who knows if these things have other sensor capabilities?"
http://blogcritics.org/archives/2006/02/19/111529.php

SpeckNets
"This vision is of a future ubiquitous technological world, where grain-sized (ie millimetre cubed) semiconductor 'specks' or 'nodes' are invisibly distributed within our environments. Sensing, computing and communicating wirelessly, these tiny specks collaborate as programmable computational networks called 'specknets'.

According to Dr DK Arvind, Director of the Institute for Computing Systems Architecture at the University of Edinburgh and one of the UK's leading advocates of speckled computing, specks provide the possibility of seamless integration between the material and digital world.
Each speck has a sensor, its own processor and memory capability. This gives the specks a kind of 'computational aura', which can pick up information from the environment. Collaborating with other local specks, the data gathered is acted upon. Depending on the application, the specks can be programmed to read a variety of information. Working together the specks are powerful enough to create new forms of pervasive computing
Other important issues around speck-based computing are the ethical and social implications of pervasive technology."
http://www.nestafuturelab.org/viewpoint/art69.htm

Future Tecnologies ... Smart Dust on its way -- Feb. 2004
A key beneficiary in building ubiquitous wireless networks will be software radios. Already in use in advanced military radios, and under development by MIT spin-off Vanu and others, software radios are certain to be here soon. These replace hard-wired radios with a computer processor and an antenna using software-based signal processing. . This means that a software radio can support different standards and can be upgraded. One device, for example, could be an FM receiver, a GPS receiver, a GSM cell phone or an 802.11 wireless network transceiver just by changing the software application it uses. It enables tremendous economies of scale which will make radio links cheap enough to put in pretty much anything.
http://www.realbusiness.co.uk/mobile/showdetail.asp?ArticleID=2632  Nanotechnology www.cybertime.net/~ajgood/nano.html