Five suspected terrorists have been arrested over a plot to assassinate the Pope. Weirdos. Why would they attack the Pope?
The good thing is that the Islamic fanatics appear to become more and more disconnected from reality, and therefore easier to catch. The Pope is not enemy to Islam, nor active in any way in the perceived oppression of Islam in Palestine or elsewhere. Rather to the contrary. But he's a very carefully observed and protected target.
Overall, the misconception with Islamic terrorists seems to be that they think there's a conflict between Islam and Christianity. What they miss is that Western countries are secular societies, even if historically strongly influenced by Christian heritage. For Muslims, Christians are people of the book (like all monotheists), but pagans, polytheists and particularly atheists are not really even human.
But the core of European politics today is atheist or at least agnostic: God does not play a major part there. Neither does the Pope.
Therefore, a plot to kill the Pope just shows how utterly lost the Islamists are. They don't know who they attack and why, and that kind of attackers will be easier to stop.
One last thing to note: the Five may of course not really be serious terrorists; it could be just a misunderstanding. Time will tell.