Savings clause
Nothing contained in this section, other than any transaction approved under subsection (e)(2) of this section or section 1823 of this title , shall be interpreted or construed as approving any act, action, or conduct which is or has been or may be in violation of existing law, nor shall anything herein contained constitute a defense to any action, suit, or proceeding pending or hereafter instituted on account of any act, action, or conduct in violation of the antitrust laws.