* This walk was arranged before the 22 May bomb. Here is the description that I wrote in the past.

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It’s a nasty world out there.

Terrorists, saboteurs, fifth columnists, spies, spooks, stooges and stool pigeons.

But don’t worry, the streets of Manchester are perfectly safe…until the authorities start to build an atomic shelter without letting anyone know about it; until the IRA phone to say a big bomb has been left in the centre of town; until MI5 open a Manchester office shrouded in the utmost secrecy; until an assassination plot on the prime minister is foiled behind the scenes.

Join us on this mind-blowing tour by passing a brown envelope filled with eight sovereigns to the man in the dark glasses and big coat standing outside the Visitor Centre. We won’t let on.