On November 9, 2010, the Supreme Court heard oral arguments in AT&T Mobility LLC v. Concepcion (Docket No. 09-893). The case presents the issues of whether the Federal Arbitration Act preempts a court decision holding an arbitration clause prohibiting class actions to be unenforceable. Here the clause at issue was contained in a cellular phone service agreement. The case touches upon the important issues of federal preemption, arbitration and class actions. The Washington Post stated that “[t]he case has been billed as one of the court’s most important on consumer rights in years, with civil rights organizations and consumer groups on one side and, on the other, businesses worried about the costs of lawyer-driven class-action suits.” If the Court rules in favor of AT&T – holding that the FAA does not preempt such clauses – it could have the effect of doing away with class actions in a wide range of situations.