United States-New leaders in FDA.

UNITED STATES-POSITIVE MOVES BY THE PRESIDENT FOR AGRICLUTURE.

President Barack Obama chose food safety and biological and nuclear threat expert Dr. Margaret Hamburg to run the U.S. Food and Drug Administration and announced a new cabinet-level food safety working group on Saturday. Obama also announced measures to keep meat from diseased cows from entering the food supply and promised to increase the number of FDA food inspectors and modernize food safety labs.

Democratic leaders in the U.S. Congress face big decisions in coming weeks on how to move forward on two priorities for President Barack Obama -- energy and healthcare reform. Work has begun on legislation at committee level but some Republicans oppose Democratic ideas about expanding healthcare coverage to millions of uninsured Americans and developing a cap-and-trade system for greenhouse gas emissions.

U.S. relations in Latin America, energy cooperation and two upcoming summits of world leaders will top the agenda of President Barack Obama’s meeting with his Brazilian counterpart on Saturday. Brazil’s President Luiz Inacio Lula da Silva meets Obama at the White House at 11:00 a.m. EDT, making him one of a small handful of foreign leaders to visit the Democratic president in Washington since his inauguration on January.