Peru's presidential candidate Keiko Fujimori is protected by bodyguards as people throw mud at her during a campaign rally in Arequipa, June 2, 2011. Right-wing lawmaker Fujimori faces left-wing nationalist Ollanta Humala, a former army officer, in Peru's tight presidential run-off election on June 5. REUTERS/Mariana Bazo (PERU - Tags: POLITICS ELECTIONS)