How dangerous a "blog" can be?

Here is the English translation of what the Iranian ex-vice president, Mohammad Abtahi, has reported on his weblog about the interrogation and torture of several Iranian blogers for what they said in their blogs.

This is what governments do when when the "national security" is in danger, and they should defend the "homeland", or "religion", "values", or any other sacred shit.
_____________________________________
More on the tortured bloggers here.