I'm still not sure what DDOS'ing a government website will ultimately achieve. So you cant access justice.gov for a few days...how many of you visit that site daily? How does this affect the Justice department other than making some IT guy look bad?
I see what they are trying to do. They want to show that the will of a few can control the masses...but hijacking a bystander's browser will only make Anonymous look like a bunch of assholes. This tactic will give the media and/or government a way to paint Anonymous in a different light.