In Board of Governors of the Federal Reserve System v. First Lincolnwood Corp., 439 U.S. 234, 99 S.Ct. 505, 58 L.Ed.2d 484 (1978), the Supreme Court upheld requirements by the Board of Governors in the absence of express statutory authorization that the holding company and subsidiary bank must meet minimum capital balances and that the application be a "source of strength" to the subsidiary before the acquisition will be approved.