Martin McGuinness was armed when he met Crown Minister William Whitelaw in 1972 for secret IRA talks at Cheyne Walk in London.
A major row broke out among members of the delegation on their return from the London talks when Mc Guinness revealed he had travelled with a revolver in his pocket.
On Wednesday, the former IRA commander and Northern Ireland’s deputy First Minister shakes hand with the Queen:
His journey as told to me for USA’s HDNet Television – so, does Martin McGuinness see himself as a history maker?
