Uribe, who is heading on Thursday for Brasilia to sign the charter of the organization, said also that his country would not take part in the Regional Security Office proposed by Brazilian President Luiz Inácio Lula da Silva. Instead, he valued the current Organization of American States (OAS).The Colombian president told RCN Radio in an interview that he commented these decisions to Lula last week in Lima during the 5th Summit of Latin America, the Caribbean and the European Union (ALC-EU).”It is not wise at this time, given the troubles with the presidents of Venezuela and Ecuador, that Colombia takes up the presidency of the South American Union,” he said, Efe quoted.