US President George W. Bush tours the Turbine Room of the Calvert Cliffs Nuclear Power plant in Lusby, Maryland. U.S. President George W. Bush tours the Turbine Room of the Calvert Cliffs Nuclear Power plant in Lusby, Maryland June 22, 2005. Guiding him are Michael Wallace (R), president of Constellation Energy's Generation Group and Mayo Shattuck (L), president of Constellation Energy. REUTERS/Jason Reed