I got into this a bit in the EULA thread a few weeks ago and just ran across a couple of new articles for anyone interested:
This is a newsweek article about the FBI accessing "internal data from telecommunications companies that showed the locations of their customers' cell phones—sometimes in real time" without a warrant, which is now normative:
FBI Tracks Suspects' Cell Phones Without a Warrant - Newsweek.com
This one's about ACTA, the "anticounterfeiting trade agreement" currently being negotiated by western "democracies", including provisions to force ISPs to enforce intellectual property laws:
Computerworld > Leaked ACTA draft reveals plans for internet clampdown
If you connect the dots here and throw in EULA type technology, you have the (soon to be realized) situation where government authorities will be making routine sweeps of you hard drive looking for...whatever.
Sieg Heil USA!