US Attorney General Eric Holder has announced that the Obama administration plans to implement new rules that would reduce sentences for thousands of nonviolent drug offenders currently in federal prisons. This new policy, combined with the Fair Sentencing Act of 2010, would allow the administration to commute the mandatory minimum sentences many prisoners received under the Anti-Drug Abuse Act of 1986. The new approach may feature hundreds of presidential pardons. In the meantime, congress has been considering new legislation (the Smarter Sentencing Act of 2014, still pending) that would cut the remaining minimum sentences in half. This is good policy, but it does not go far enough. Here’s why.