Whether for better or for worse, religion is becoming an important global issue once again, and more often than not, matters of faith seem to be fodder for bloody conflict and bad feeling between nations. So a prominent architect who specializes in designing houses of worship can be counted not only as a progressive development, but a profoundly unusual one. But Mario Botta’s driving inspiration goes beyond simple religious faith, and crosses over into a complex and deeply felt belief in “ethical” design.