Hundreds of people have staged a protest in Trafalgar Square against changes to the benefits system.
The so called bedroom tax, which is due to be introduced next month, would see welfare payments deducted from households judged to have extra rooms.
The changes mean that around 80,000 will lose an average of £771 each.
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The footage was apparently shot in south London showing a motorist eating a bowl of cereal, and texting whilst sitting in traffic.
The Prime Minister is trying to curb the money laundering that goes on at the highest ends of the London property market.
The average increase across the capital is 9.2% this year - with areas in the east and south of the city up by 15-16%.