Abductions have increased in Haiti, but religious aid groups are still going there.

The seventeen people from an Christian aid mission abducted in Haiti while returning from an orphanage remain missing, four days later.

Their kidnapping – brazen even in a country where abductions have increased exponentially recently – have cast a spotlight on the work that religious relief organizations undertake in sometimes dangerous conditions.

Indeed, such aid groups are often found in the parts of the world where conditions are most dire.

To understand the sorts of security protocols they take, and how they weigh their call to serve against significant risks, we spoke with three religious relief groups: Samaritan's Purse, Catholic Relief Services, and Mennonite Central Committee. Each does relief work in Haiti.

Christian Aid Ministries, the group whose workers were kidnapped on Saturday, is based in Berlin, Ohio. Its relief teams are from Amish, Mennonite, and other conservative Anabaptist communities, according to its website.

The kidnappers are reportedly demanding $1 million