The Iranian regime has effectively shut down many of the ways the world can find out in detail what is going on. Early on during the protests it started controlling those reporters still there and going after Iranian journalists by intimidation or jailings so the traditional eyes and ears were not only not there but the traditional journalistic system of even shaky verification of reports from the scene had broken down. Blog posts and Twitters are either not confirmed or not entirely confirmed. Yes, they are carried and reported on but generally don’t get the same weight in the world’s mainstream reporting as actual verified news reports from the scene.