Last week, fans of Sir Cliff protested outside Broadcasting House against the decision to leave him off the playlist, which was taken because the song did not have "broad enough appeal".

BBC: News | Entertainment | Christians call for Sir Cliff boycott

Earlier on Saturday, police said at least 2, 000 protesters gathered outside the BBC's Broadcasting House in central London before handing in a petition to the corporation.

BBC: resisting pressure over Gaza

On Friday night, Abu Nusaybah, a friend of Mr. Adebolajo, was arrested outside the studios of the British Broadcasting Corp.

WSJ: U.K. Suspect Was Detained in Kenya in 2010

He continued his broadcasting and became a thorough organiser of outside broadcasts, as well as originating his own sports programmes.

BBC: Don Mosey

Attacks like the "evil twin" disrupt a company's network from the outside, jamming its radio signals or bogging it down with a denial of service attack, then broadcasting a counterfeit signal into the building.

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