andrei, i look at it from a slightly different perspective (though i do agree the stuff should be rendered so that no names are on the "leaks". especially names of people in countries who have risked something to expose crooks.
but really, the government expect transparency from its citizens, they expect transparency from the media. look at the murdoch press in england.
now they must also expect that they provide us with transparency.
you cant maintain the moral high ground by also thinking its ok to do what you like with your intelligence agencies.
again , if you want to have intelligence forces operating at the governments behest, you need to explain to the citizens why it is a good idea.
as a general principle though, the truth is always better than lies.
if nothing else it stops crazy conspiracy theorists banging on about freemasons