The website run by Anonymous for the Million Masks March claims that there will be more than 400 protests around the world.
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The UK is preparing itself for a windy and rainy weekend as Storm Brian sweeps up from the south coast.
It will be a cloudy and at times damp morning across much of the UK, apart from the far west where it will be dry and bright.
Barack Obama has returned to the political spotlight, campaigning for Democratic candidates ahead of upcoming elections.