Senate Judiciary Committee Chairman Sen. Patrick Leahy, D-Vt., left, accompanied by the committee's ranking Republican Sen. Charles Grassley, R-Iowa, asks a question, on Capitol Hill in Washington, ... more 
Senate Judiciary Committee Chairman Sen. Patrick Leahy, D-Vt., left, accompanied by the committee's ranking Republican Sen. Charles Grassley, R-Iowa, asks a question, on Capitol Hill in Washington, Tuesday, Sept. 10, 2013, during the committee's hearing entitled: "Conflicts between State and Federal Marijuana Laws. The Justice Department announced Aug. 29 that it won't try to stop Colorado and Washington state from legalizing recreational marijuana use as long as they implement strong enforcement systems. Marijuana is an illegal drug under federal law. (AP Photo/Susan Walsh) less 
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Associated Press | Photo By Susan Walsh
Tue, Sep 10, 2013 9:10 PM EDT