I do have this rather strong attachment to the idea that journalists should not be imprisoned for attempting to cover news. Especially when that news is of legal protesters being arrested. Now more footage is coming out of Minneapolis/St. Paul of arrests of journalists — in this case, a house raid on a group of people from I-Witness. Their website and this video explain that their video documentation managed to prove numerous acts of perjury by officers arresting people at the 2004 Republican National Convention in NYC. So you can see why the Minneapolis/St. Paul police might feel the need to be proactive.
Free Press is offering an online petition in support of journalists, or you can watch the raid on the I-Witness house on YouTube.