How British journalists talk about people they're not allowed to talk about

To be honest, I’m an ignorant American regarding the intricacies of relations between the Irish and the English. I know some of the history, but Guy Fawkes is not a famous person to most Americans. In my travels and working abroad, I have learned that he is 1) a caricatured face on the Anonymous masks, 2) a reason for bonfires on November 5th, and 3) a (traitorous? patriotic? not sure) bomber of Parliament. I could look up more, but I’m really not bothered either way.