Historian Daniel Scavone does not say that the Shroud was taken to Britain. He has showed how by a verbal confusion of Edessa‘s "Britio Edessenorum" with "Britain", the Holy Grail never existed but is actually the Shroud which was then in Edessa (now Sanliurfa, Turkey) and was never was in Britain
Read the entire posting: The Shroud of Turin: Re: Why couldn’t Joseph of Arimathea have taken the Shroud?