This episode's headline: Somalia Diary; God's Work; Cockeyed Optimism. The guests include MICHELE MACKIN, CONCERN; RABBI ALEXANDER SCHINDLER; JOE VOLK, Quaker; RICHARD LAND, Southern Baptist Scholar; SISTER CAMILLE D'ARIENZO; BISHOP ORRIS WALKER, Episcopalian; GHAZI KHANKAN, Council on Islamic Affairs; CORRESPONDENTS: CHARLAYNE HUNTER-GAULT; ANNE TAYLOR FLEMING. Byline: In New York: ROBERT MacNeil; In Washington: JAMES LEHRER