Costa Rican presidential candidate Lineth Saborio of the Social Christian Unity Party says she wants to make the country "more united" as she greets supporters outside a polling station in San Jose. Costa Rican voters head to the polls to choose a new president from a host of candidates, with no clear frontrunner to address growing economic concerns in one of Latin America's most stable democracies. IMAGES AND SOUNDBITES TO COMPLETE VIDI9YF7ZU_EN