US President Obama greets workers at POET Biorefining in Macon, Missouri

 
US President Obama greets workers at POET Biorefining in Macon, Missouri
U.S. President Barack Obama (2nd R) greets workers at POET Biorefining in Macon, Missouri April 28, 2010. Obama is on a three-state trip, the latest leg of his "White House to Main Street" tour to discuss ideas for rebuilding the economy. REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS BUSINESS ENVIRONMENT ENERGY)