People from 14 countries and 25 US states have been taking part in this year's International Whistlers Convention in North Carolina, with the age of the contestants ranging from seven to 90.
Republicans and Democrats remain positive that a deal to prevent a partial shutdown of the US government is possible.
Barack Obama has become the first person to announce a campaign for the presidency next year.
Polls show US public remains evenly divided over the US role in a military intervention in Libya.
Peru, Colombia, Chile and Mexico are set to form a new regional economic block. But given that all four countries already benefit from free trade agreements, where's the need for such a pact? The answer lies in Brazil's recent - and projected - boom.
Less than a year after a new Turkey, Brazil and Iran diplomatic power triangle appeared to have come into being,
Dilma Rousseff, Brazil's new president, has downgraded her country's relations with Tehran.
Agreeing to protect civilians in Libya was the easy part. Deciding how to do so is proving much more difficult.
The US president's first-ever trip to South America has been historic alright, but not for the reasons initially expected.
After the earthquake and tsunami that recently rocked Japan, things have changed and life is now very distressing for Japanese living in Brazil.
Hacker, now in hiding, who turned in US soldier accused over WikiLeaks, says he got "coffee and a pat on the back".
What a change from when I came here three years ago! Back then virtually nobody had heard of us. Out of those who did, one tried to bomb our offices several years ago.