What is the conflict in angels and demons and why?

The conflict in "Angels and Demons" revolves around a secret society, the Illuminati, attempting to destroy Vatican City using a stolen antimatter bomb as an act of revenge against the Catholic Church for its historical suppression of scientific advancement. The protagonist, Robert Langdon, is drawn into a race against time to uncover the truth and prevent a catastrophic event. The tension between science and religion is a central theme, highlighting the struggle between enlightenment and dogma. Ultimately, the narrative explores the potential for both destruction and reconciliation between these two powerful forces.