Supporters of Bolivian President Evo Morales shout slogans during a protest against an autonomy referendum in La Paz May 4, 2008. Bolivia's richest region of Santa Cruz went ahead with a vote on greater autonomy from the central government on Sunday in a referendum that Morales' declared illegal, but still poses the biggest challenge yet for his government. REUTERS/Gaston Brito (BOLIVIA)
REUTERS/GASTON BRITO