Tony Blair Converts to Catholicism

Former Prime Minister of England and presently a Middle East peace envoy, Tony Blair has converted from Anglican/Protestant faith to the Catholic faith. No reasons have been offered yet; however, both his wife and children have been Catholic for some time.

Is this a political move to soften Middle East perception, a family induced capitulation, or a sincere affirmation of Catholic faith and practice versus his prior commitment to the Anglican Church?