On Monday March 31, 2015 President Barack Obama commuted the sentences of 22 Drug War Prisoners. This is a small step in the right direction from the Obama administration. Here is a link to the White House Blog page about it.
From an article on Alternet
"Had they been sentenced under current laws and policies, many of these individuals would have already served their time and paid their debt to society," White House counsel Neil Eggleston said in a statement announcing the commutations. "Because many were convicted under an outdated sentencing regime, they served years -- in some cases more than a decade -- longer than individuals convicted today of the same crime."