The Free Network Foundation
thefnf.org
thefnf.org
I know that, unless the whole network is completely trustworthy, any data I send to network may (and eventually will) be intercepted or modified in transit, either unintentionally or maliciously. And decrees "oh, yeah, it's a law - nobody will peek at your data or mangle it, we promise, go send it unprotected (and while we're at it, don't lock your car too)" don't make any trust.
I think it's better not (falsely) believe to have such freedoms on modern Internet at all, and do our best to protect our own data, than sorry when beliefs will met with reality. Trustworthy large-scale networks are coming right after the world peace.
(Yup, I sincerely believe in a technological solution to the political problem. But technological solution is well-tested and known to work when politics fail. Humans lie and math don't.)
#3 - the 'unaltered' property - is something we can add with signatures where appropriate and doesn't need to be a forced layer on every communication as its overheads may often be undesirable.
I also think, the political solution should be explored in the area of government and corporate transparency and personal data handling laws, so we may have a better chance to know when a database containing our personal data is built. Maybe, explicitly legalizing ang encouraging whistleblowing about any databases containing personal data on more than a certain amount of persons, whatever secret status it may have... I don't know. The only thing I'm sure, is that a law that spies must not spy is going to be violated, for certain.