Certain Pledges. Any [[Organization B:Organization]] may at any time pledge or assign a security interest in all or any portion of its rights under this Agreement to secure obligations of such [[Organization B:Organization]], including any pledge or assignment to secure obligations to a Federal Reserve Bank or any central bank having jurisdiction over such [[Organization B:Organization]]; provided that no such pledge or assignment shall release such [[Organization B:Organization]] from any of its obligations hereunder or substitute any such pledgee or assignee for such [[Organization B:Organization]] as a party hereto.