Brazil is on guard against potential terrorist threats, but denies terrorism is a problem in the South American country, U.S. officials said in confidential diplomatic cables released by WikiLeaks. In the U.S. view, the policy is aimed at protecting Brazil’s international image and that of its Muslim and Arab communities.The cables, intended to be confidential, were reviewed by The Associated Press after they were posted Sunday on the website of document discloser WikiLeaks, along with other cables from U.S. diplomats based in countries around the world.”Politically, Brazil continues to deny the presence and potential threat of terrorists and terrorism in Brazil, while law enforcement and intelligence monitor and cooperate to counter the threat,” according to one of the cables, sent last December. It was not clear who wrote the dispatch.