“The US Sentencing Commission (USSC) voted unanimously Thursday to reduce sentences for most federal drug trafficking defendants. The move comes as the federal prison population continues to increase, driven in large part by drug offenders, even as prison populations in the states are on the decline. USSC said the changes would affect about 70% of federal drug trafficking defendants and would result in an average sentence decrease of 11 months. That means the average federal drug trafficking sentence will drop from just over five years to just over four years. There are currently more than 216,000 federal prisoners. Slightly more than half are doing time for drug offenses.”
http://stopthedrugwar.org/chronicle/2014/apr/11/ussc_cuts_drug_sentences