United States President Barack Obama (C) signs the Fair Sentencing Act beside a bipartisan group of lawmakers in the Oval Office of the White House, in Washington DC, USA, Tuesday, 03 August 2010. The law will aim to correct the disparities between crack and powder cocaine sentencing.  Previously, people in possession of powder cocaine could carry up to one hundred times more grams than crack offenders and receive the same sentence.  .Credit: Michael Reynolds - Pool via CNP