What is the theme of the video uprising by muse?

There are two videos. The first one goes with the longer, original song, andone with the edited version.

On the full-length version, there are a group of people with funny-looking masks. One scene shows one of these masked people using a conductor's stick to set a fire to the Big Ben building. Another scene shows another one of these people killing several law-enforcement people (FBI?). The last scene shows several more of these people gathered together in a street, then it ends.

The other video (the shorter edit version) depicts a model city with model cars houses and people. The band is in the back of an old '40s pickup truck playing the song. Every once in a while you see a fuse that is running down the streets, burning. Somewhere in the middle of the song, a bunch of teddy bears jump out of the ground and destroy the city. At the end the teddies fall down (assumingly dead)