In the case of a gift of money or securities offered to the Library of Congress, if, because of conditions attached by the donor or similar considerations, expedited action is necessary, the Librarian of Congress may take temporary possession of the gift, subject to approval under . The gift shall be receipted for and invested, reinvested, or retained as provided in , except that—
((1)) a gift of securities may not be invested or reinvested; and
((2)) any investment or reinvestment of a gift of money shall be made in an interest bearing obligation of the United States or an obligation guaranteed as to principal and interest by the United States.