epa01661571 Bolivia's President Evo Morales (L), Sweden's Queen Silvia (C) and UNODC Director Antonia-Maria Costa (R) arrive for a meeting of the United Nations Commission on Narcotic Drugs (UNODC) in Vienna, Austria, 11 March 2009. A landmark UN summit in Vienna opened to review the 10-year-old global 'war on drugs' policy amid tensions between the US and European governments over what many see as a flawed approach. EPA/ROLAND SCHLAGER