The only difference is the greater bureaucratic procedures in handling this data, but there is technically nothing off-limits (information-wise) to law-enforcement or security agencies. This is especially true in the wake of anti-terror legislation all across the EU. This will become more apparent as copyright lobbies are pushing for greater surveillance of internet users.

The old adage that 'if you have nothing to hide, you have nothing to fear' has been thoroughly incorporated into modern state doctrine.

So downvote at will, but it would be nice to do so with some counter-arguments.