Mexico's President Enrique Pena Nieto (L) speaks with his Irish counterpart Michael D. Higgins during a bilateral meeting in Rome March 20, 2013, in this picture provided by the Mexico Presidency. REUTERS/Mexico Presidency/Handout (ITALY - Tags: POLITICS) ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. FOR EDITORIAL USE ONLY. NOT FOR SALE FOR MARKETING OR ADVERTISING CAMPAIGNS. THIS PICTURE IS DISTRIBUTED EXACTLY AS RECEIVED BY REUTERS, AS A SERVICE TO CLIENTS less