Right under their noses - Graffiti artist Banksy pulls off most audacious stunt to date - despite being watched by CCTV

Banksy pulled off an audacious stunt to produce what is believed to be his biggest work yet in central London. The secretive graffiti artist managed to erect three storeys of scaffolding behind a security fence despite being watched by a CCTV camera. Then, during darkness and hidden behind a sheet of polythene, he painted this comment on 'Big Brother' society