WTO - argentina beef blocked at US market

"Argentina has notified the WTO (World Trade Organization) Secretariat of a request for consultations with the United States on measures applied to the imports of Argentinean meat and other products of animal origin.
"Argentina claims that the restrictions, applied on sanitary grounds, don't have scientific justification," the WTO said.
Argentina is seen by many fellow Group of 20 nations as a chronic rule-breaker since it staged the world's biggest sovereign debt default in 2002. It remains locked out of global credit markets and relies on export revenue for hard currency.
http://www.reuters.com/article/2012/08/31/us-argentina-us-beef-idUSBRE87U0ZI20120831