This episode's headline: Finding Fault; Cash Crop; Fire Fight. The guests include YERVANT MELKONIAN, Armenian Magazine Editor; FREDERICK KRIMGOLD, Architect; BRIAN TUCKER, Geologist; JULIA TAFT, U.S. Relief Official; RAGHIDA DERGHAM, Al-Hawadeth Weekly; DAVID MIZRAHI, Mideast Report; CORRESPONDENTS: PAUL SOLMAN; JAMES ROBBINS; LOUISE BATES. Byline: In New York: ROBERT MacNeil; In Washington: CHARLAYNE HUNTER- GAULT