On a recent Sunday morning, Steve Haas arrives at Seattle-Tacoma International Airport to meet a group of Seattle pastors and church members. Haas, a former cleric at one of the country’s best-known evangelical megachurches, Willow Creek Church in Chicago, is leading the group on a trip to Africa. Milling about the KLM ticket counter with him are several people from University Presbyterian Church carrying long thin black bags that make a clanking sound; inside are pipes for a well pump they are bringing at the request of a missionary in Kenya. Read more.