Why does crime happen? Well, you might say that it's because youths don't have jobs. Or you might say that's because the doors of our buildings are not fortified enough. Given some limited funds to spend, you can either create yet another national employment program or you can equip houses with even better cameras, sensors, and locks.
In Google's world, public space is just something that stands between your house and the well-reviewed restaurant that you are dying to get to.
One possible future for WikiLeaks is to morph into a gigantic media intermediary - perhaps, even something of a clearing house for investigative reporting - where even low-level leaks would be matched with the appropriate journalists to pursue and report on them and, perhaps, even with appropriate NGOs to advocate on their causes.