do you think catholic stoics. so they kind of skepticism today? >> guest: part of the plan of the book was to map out the intolerance that religious groups have suffered a mother to take certain moments to look at the details and understand. for me, looking at the discrimination before the introduction of irish catholics in ireland was a particularly helpful time because you have an 1834 a convent school is burned to the ground outside of boston because of what irish catholics are bringing. 10 years later, you have it current with riots between database, protestant database and irish catholics is to have these two moments of great island but i think account the deeper issues. the irish cat in many ways face a prejudice that some other catholics did not faze. even later, the turn-of-the-century increasing notions of racism coming ahead in the united states and been quite acceptable in many ways. irish catholics were trying to speed up a different race in many ways. that is nonsense than german cat the important part of the book is many of these iss