So it is very understandable that Tony Blair should convert. But what about the difficulties – and they are great? He has been a great champion of embryonic stem cell research. This involves the destruction of the tiny multiplying bundle of cells that form the early embryo. According to the Roman Catholic Catechism, ‘human life must be respected and protected absolutely from the moment of conception’. In other words, the early embryo has to be accorded the full rights of a baby. This also rules out in vitro fertilisation, for this involves the destruction of some of the fertilised eggs. All this without even taking into account his voting record on abortion.
Then there is the question of gay relationships and his support for civil partnerships. As a Catholic there can be no question of Tony Blair now advocating their blessing.
There are also the old theological difficulties. A huge amount has been achieved in recent years by the international commission of Anglican and Roman Catholic theologians. On issues such as the Eucharist, misunderstandings have been overcome and substantial agreement reached. But on two areas there is still a big divide. One is any idea of the Pope being an oracle in his own right, as opposed to the linchpin of the college of bishops. The other involves dogmas such as the Immaculate Conception and the Assumption, which Anglicans may believe if they like, but which since the 19th century have been matters of basic faith for Roman Catholics.