What action will the Irish State take against the Bishops who are aledged to have covered up the sex abuse of children in their dioceses?

Lets have a hard look at the political situation in Ireland and the failure to prosecute the Vatican and the Irish Bishops for the enabling and facilitation of a wide range of sexual offences committed by priests against children. I am not of course interested in sensationalist rant, I would rather have an genuine forensic examination of the legal issues.