Voters walk in front of a national flag that reads "Costa Rica is all of us" at a polling station during the voting on a referendum to decide whether to approve the country's participation in the Central American Free Trade Agreement (CAFTA) with the U.S., in San Jose October 7, 2007. Costa Ricans voted on the free-trade deal on Sunday in a referendum that has split the Central American nation like no other issue in decades. REUTERS/Monica Quesada (COSTA RICA)