Whether the Federal Arbitration Act permits a court to refuse to enforce an arbitration agreement delegating all questions, including questions of arbitrability, to an arbitrator where a party contends that the claim sought to be arbitrated represents a 'collateral attack' on a prior arbitration award

QUESTION PRESENTED Whether the Federal Arbitration Act permits a court to refuse to enforce an arbitration agreement delegating all questions, including questions of arbitrability, to an arbitrator where a party contends that the claim sought to be arbitrated represents a “collateral attack” on a prior arbitration award.