So, today, in American Express v. Italian Colors, the U.S. Supreme Court said that a take-it-or-leave-it arbitration clause could be used to prevent small businesses from actually pursuing their claims for abuse of monopoly power under the antitrust laws. Essentially, the Court said today that their favorite statute in the entire code is the Federal Arbitration Act, and it can be used to wipe away nearly any other statute.
As Justice Kagan said in a bang-on, accurate and clear-sighted dissent, this is a "BETRAYAL" (strong word, eh?) of the Court's prior arbitration decisions. You see, until now, the Supreme Court has said that courts should only enforce arbitration clauses where a party could "effectively vindicate its statutory rights." Today, in a sleight of hand, the five conservative justices said that this means that arbitration clauses should be enforced even when they make it impossible for parties to actually vindicate their statutory rights, so long as they have a theoretical "right" to pursue that remedy.
The plaintiffs in this case, restaurants and other small merchants, claim that American Express uses its monopoly power over its charge card to force them to accept American Express's credit cards and pay higher rates than they would for other credit cards. This is called a "tying arrangement" under the antitrust laws -- American Express is alleged to be using its monopoly power over one product to jack up the price of another product to higher rates than it could charge in a competitive market.