It was the current pope's first trip to Mexico, the world's second most populous Catholic country.

WSJ: In Cuba, Pope Urges New Cooperation

But the Vatican does not accept Pius XII was culpable of assenting to the Holocaust, and - even if it did - it would be impossible to cast blame on a pope whom the current pope has begun moves to beatify.

BBC: Vatican's Mid-East balancing act

The leaked documents include a letter to Pope Benedict by the Vatican's current ambassador to Washington alleging cronyism, nepotism and corruption among the administrators of Vatican City.

BBC: Vatican launches criminal probe into unauthorised leaks

The former priest and three current priests from the diocese of St Andrews and Edinburgh complained to the Pope's representative to Britain, Archbishop Antonio Mennini, in early February about what they alleged had been inappropriate behaviour towards them in the 1980s.

BBC: Cardinal Keith O'Brien sorry for sexual misconduct

The former priest and three current priests from the diocese of St Andrews and Edinburgh complained to the Pope's representative to Britain, Archbishop Antonio Mennini, in early February about what they alleged had been inappropriate behaviour towards them three decades ago.

BBC: UK

Cardinal O'Brien's resignation took place after the former priest and three current priests from the diocese of St Andrews and Edinburgh complained to the Pope's representative to Britain, Archbishop Antonio Mennini, in early February about what they alleged had been inappropriate behaviour towards them in the 1980s.

BBC: Cardinal Keith O'Brien