Not really CDG related, but: I recently traveled in Middle East. In a country where UN blue helmets are present and you see army with guns in public places.
At the airport, everyone has to put their all bags through an oversized (not the normal cabin baggage size) X ray scanner even before checkin. I unloaded the film (HP5+ @1600) and put it in my pocket (in a plastic can). But, given the circumstances I figured this could put me in far more trouble than it's worth... So I just put the film in the bags and let them scan it.
I assume it was a good thing to do given that the security pats-down everybody, even if the metal detector does not beep.
I haven't developed the roll yet, so I don't know if it's been ruined or not.