Troy Davis case revives capital punishment row
Issued on: Modified:
His fate went down to the wire, but despite last minute appeals, Troy Davis was put to death by lethal injection. His execution has raised big questions about the US death penalty. Also, how best to boost the American economy? New figures show poverty levels have shot up as a row is raging in Washington about Obama's latest plans. Finally, a look at the devastating results of decades of pollution in one of Argentina's biggest rivers.