As a Christian, I would look upon missionaries placing themselves in harm's way as standard behaviour. We are dealing with peoples' immortal souls, and we shouldn't be afraid of conflict - if just one person is saved, then it has been worth the fight, because that is one more soul in heaven, not hell. Non-Christians just do not appreciate what is at stake, and we have to continue envagelising in every corner of the world despite their protestations.
If you read through the comments to that NYT piece, you can see these sentiments repeated over and over again.
Now no longer a Christian, I have to ask... do those comments scare the fuck out of you as much as they do me???