Do you have a better idea?

This is an iterative process. Yes, GlobaLeaks could be used to spread fake leaks, but then it will force all democratic processes to be more transparent, in order to efficiently prove or disprove leak L or new N.

How fast we can prove a piece of fact is the next step, but to get there, you have to give people the tools to spread information (true and fake) as much as possible, imho

Edit : Also, this initiative is European. If you don't trust your own intelligence services, stop whining about it and come live in Europe?