Protesters hold their banners whilst demonstrating outside St Mary's University College in Twickemham, west London where Pope Benedict XVI celebrated Catholic education, Friday, Sept. 17, 2010. Pope Benedict XVI  is on a four-day visit, the first-ever state visit by a Pope to Britain. (AP Photo/Sang Tan)

Photo by: Sang Tan

Protesters hold their banners whilst demonstrating outside St Mary's University College in Twickemham, west London where Pope Benedict XVI celebrated Catholic education, Friday, Sept. 17, 2010. Pope Benedict XVI is on a four-day visit, the first-ever state visit by a Pope to Britain. (AP Photo/Sang Tan)