Eighth Circuit -- Wells Fargo Bank, N.A. v. WMR e-PIN, LLC

 For purposes of diversity jurisdiction, a national bank is a citizen only of the home state where its main office is located.  

Injunctive relief by arbitrator was kosher.

In a trade secrets arbitration, inquiry into patent inventions is permissible.

Abuse of discretion in not amending injunction to remove prohibitions on use of ideas which became public-domain during the pendency of the action.

Dissent: Principal place of business, not head office governs.

Wells Fargo Bank, N.A. v. WMR e-PIN, LLC