U.S. President George W. Bush (L) and Colombia's President Alvaro Uribe greet reporters upon Bush's arrival at the presidential palace of Bogota March 11, 2007. George W. Bush on Sunday will become the first U.S. president since Ronald Reagan to set foot in Bogota as he tries to bolster his staunchest Latin American ally fighting a decades-old insurgency and drug war. REUTERS/Jose Miguel Gomez (COLOMBIA)