It's pretty impressive how Greenwald, Snowden et al are organizing the staggering/trickling. They're not just releasing any old info at periodic intervals. They seem to be anticipating the responses NSA/USG will give to particular leaks (e.g. analysts can't run searches, there are checks and balances) and choosing next leaks based on how they can prove those NSA/USG statements wrong.

It's like the Socratic method for public/government relations.

The goal seems not just to be exposing the magnitide of this surveillance system, but also the government's systemic disregard for public mandate in the USA right now.