Pseudo- conspiracy theory and yet real also, you should know about RFID 'spy chips' - they're a reality
So, basically, everything you buy can be tracked to you specifically. And they're virtually undetectable, or close to it (with conductive ink they can, or soon will be able to, make tags as small as the dot of a printed "i" - so they cen be pretty much anywhere).
Definitely something to keep an eye on, as Wal-Mart has already started to implement them.

The Million Dollar Homepage - brilliant piece of advertising, and a million dollar boon for a college kid - he sells ad space on his site, pixel by pixel

Wasps are the new anti-terror weapon - I'm not kidding - they can also sniff out other contraband besides explosives, crops that are rotten underground, and maybe even cancer.
Now that's some WEIRD science.