It was, without doubt, one of the proudest moments of my life. To stand at the memorial to those who suffered and died at Auschwitz-Monowitz, and pay tribute to the British prisoners of war who worked alongside Jewish slave workers in the IG Farben chemical works, was a deeply humbling experience.

Facebook has refused to remove pages where internet users espouse Holocaust denial despite a plea from a group of Holocaust survivors.

Earlier this month 21 survivors of Nazi persecution signed a letter which was sent to Facebook, asking that Holocaust denial no longer be allowed as part of facebook's "free speech" policy.

A Holocaust-denying British bishop who said "evidence was strongly against six million Jews having been deliberately gassed" has lost his appeal after being convicted of Holocaust denial.

It was supposed to be an ordinary day of work for Stephen Johns, a 39-year-old security guard at the US Holocaust Memorial Museum in Washington DC.

But in a tragedy that shocked the nation, Mr Johns, who was later described by colleagues as "a soft-spoken, gentle giant", was shot dead that afternoon by an octogenarian with ties to white supremacist groups.