7PM This episode's headline: Stopping Saddam; Price Shock. The guests include RAGHIDA DERGHAM, Journalist; JOSEPH SISCO, Former State Department Official; JAMES AKINS, Former Ambassador to Saudi Arabia; NICHOLAS VELIOTES, Former State Department Official; TOM BURNS, Chevron Corporation; ED ROTHSCHILD, Consumer Advocate. Byline: In Washington: JAMES LEHRER; In New York: CHARLAYNE HUNTER- GAULT