From the National Catholic Register:
A German theologian and friend of Benedict XVI, 
drawing on the writings of a ninth-century bishop, appears to have made a historic and fascinating discovery, revealing how the Shroud of Turin and the sudarium (the Veil of Veronica) were central to the Roman liturgy from as far back as the Carolingian times, most probably before. The two relics and their inclusion in those early liturgies also point to the Real Presence.
The discovery has only now come to light, after debate over the burial cloths has intensified over the past 10 years and interest has developed regarding their authenticity. The Register spoke recently with German journalist Paul Badde, who has been following the discovery closely and is an authority on the Holy Face of Manoppello, which many believe to be the true sudarium, to find out more.