The U.S. Supreme Court has just issued a decision holding that under the Federal Arbitration Act (FAA) an arbitrator, not a court, should decide whether an arbitration agreement is unconscionable when the parties have delegated the determination of that issue to the arbitrator. See Rent-A-Center West v. Jackson (June 21, 2010). The Court's decision overturns that of the Ninth Circuit, which held that the court has exclusive jurisdiction to determine the issue of unconscionability, even though the parties' arbitration agreement gave the arbitrator that authority.