As the son of an Irish-American mother, and a catholic, I take exception to hang's statement.
There certainly has been prejudice and oppression of Catholics in Northern Ireland, but in recent decades that has been a result of IRA violence and polarization of the community. Interesting, since most IRA leaders espouse a socialist, ant-religion platform, that most of the world sees the fight as "catholic" against "protestant". It's not--it is a pure revolutionary power struggle for independance.
And check the facts about our boy Cromwell. He was in Ireland for less than a year, and didn't kill indiscriminately. Yes, there were a couple of massacres, but he was no worse than the local leaders.