Archbishop Charles Chaput visited the shrines of local saints St John Neumann and St Katharine Drexel, with his predecessor as Archbishop of Philadelphia, Cardinal Justin Rigali, yesterday. George Weigel, Laurie Goodstein, William Oddie and Michael Sean Winters comment on the appointment. The Vatican has unveiled the schedule of the Pope’s four-day visit to Germany in September. Several hundred people have joined a Facebook group calling for the expulsion of the Apostolic Nuncio to Ireland, Archbishop Giuseppe Leanza. Fr Tim Finigan welcomes plans to found a Catholic university college in Britain. Carl Olson interviews British Catholic icon writer David Clayton. And today's Google Doodle celebrates the life of the Augustinian friar and scientist Gregor Mendel.