Soldiers and policemen guard the crime scene where a prison guard was gunned down in the border city of Ciudad Juarez, September 23, 2009. One in three Mexicans would migrate to the United States if they had the chance, and many would go illegally at a time of rising drug violence in Mexico, a survey released on Wednesday showed. REUTERS/Alejandro Bringas (MEXICO CONFLICT SOCIETY CRIME LAW)
REUTERS/STRINGER/MEXICO