A papal visit always incur a considerable cost to the public purse and ultimately to taxpayers. The Pope may claim empathy with the poor, and engage in pretended acts of sympathy and compassion, but the reality is somewhat different.
By claiming to be a 'Head of State' a papal visit to another country is regularly deemed an official state visit. It is only visiting 'Heads of State' who can be given such a honour. Not all visits by Heads of State are given the honour of a State visit. Some are deemed unworthy of such an honour, either because of political sensitivities or insignificance. Some visits by Heads of State are deemed an 'Official Visit', or a 'Working Visit', or a 'Private Visit'.
It is one of the old papal claims that the Pope is a monarch of great honour, who rules over all other monarchs and presidents. He is also Head of State of the Vatican. He deems himself to be worthy of a state visit.
By recognising the claims of the Pope and affording him a state visit, the government of the day would normally cover the cost of that visit.
Will that happen in Northern Ireland? Will taxpayers have to pay for the Pope to visit Northern Ireland? If so, then how much will it cost and who is going to pay? Will Rome, or the Roman Catholic Church, cover the costs of such a visit?