They are guarding the Holy Site. They locked themselves in and yet are captive as they are guarding the Church with their lives.
They aren't. English is not Father Seweryn's first language.
They ARe hostages in a way....but they are PROTECORS of the most HOLIEST of sites of Christianity. If they left, the Palis would desecrate the Christian Holy Site and so the Priests and the Nuns STAY....to PROTECT....the Church...not the Palis.
I have been there...the Holy Place is down stairs and quite small, but upstairs is large and open, so MAYBE the Palis haven't ruined the place. The Israelis would NEVER harm the Church.
I noticed that too.