A man draws a chalk outline representing a body during a protest outside the campus of Monterrey Institute of Technology and Higher Education as Mexico's President Felipe Calderon is on an official visit to Monterrey January 9, 2012. Students staged a protest against the death of two fellow students who were shot dead accidentally by soldiers who mistook them for hitmen in a firefight outside the campus in 2010. REUTERS/Daniel Becerril (MEXICO - Tags: POLITICS CIVIL UNREST)