Any dispute or controversy arising under or in connection with this Agreement which cannot be resolved informally by the parties shall be submitted to arbitration and adjudicated in Washington, D.C. pursuant to the commercial rules (single arbitrator) of the American Arbitration Association then in effect. The decision of the arbitrator shall be final and binding on all parties hereto. Each party shall bear its own costs in any arbitration proceeding held hereunder and the parties shall share the costs of the arbitrator.