He also called for “all forms of civil disobedience within the law,” during the games.

“If there is a protest, then the purpose of protest is to bring your grievances to the attention of as many people as possible,” McCluskey told the Guardian.

David Cameron has called McCluskey’s comments “unacceptable and unpatriotic” and Labour leader, Ed Miliband, has said: “Any threat to the Olympics is totally unacceptable and wrong.”

A protest against public sector cuts is already planned for 28 March, but no protests are currently planned to coincide with the Games.

During Prime Minister’s Questions Cameron demanded that Labour turn back the money they receive from Unite.

Miliband said the Olympics were “a celebration for the whole country and must not be disrupted”.

McCluskey even appears to be out-of-step with fellow trade unionists: The TUC’s Brendan Barder looked to distance himself from the comments saying that the unions wanted a Games which the whole nation could be proud of.

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