MEXICAN CHEMIST RUIZ LOYOLA WORKS IN HIS LAB BEFORE LEAVING ON WEAPONS INSPECTION DUTY IN IRAQ,...

Benjamin Ruiz Loyola (L), a Mexican chemist and head of the department of Experimental and applied chemistry at Mexico City's UNAM (National Autonomous University of Mexico), chats with a student while holding an agave cactus leaf in his lab January 17, 2003. Ruiz and another Mexican chemist have been called up by UN weapons inspector Hans Blix to partcipate in the search for weapons of mass destruction in Iraq. Ruiz and his department research uses for the parts of the agave cactus discarded during the production of tequila. REUTERS/Daniel Aguilar AW