The Supreme Court and U.S. Court of Appeals for the D.C. Circuit Court have each recently decided cases involving arbitration. Co-authored by partner Holly Weiss, this article addresses New Prime v. Oliveira, in which the Supreme Court ruled on an exception to arbitrability under § 1 of the Federal Arbitration Act, 9 U.S.C. § 1, and Diag Human v. Czech Republic, in which the U.S. Court of Appeals for the D.C. Circuit ruled on the binding nature of foreign arbitral awards.