Richard Nixon actually said...
SEC. 2. With respect to acquisitions of stock of foreign issuers and debt obligations of foreign obligors made under the rules of a national securities exchange registered with the Securities and Exchange Commission or under the rules of the National Association of Securities Dealers, Inc., this order shall be effective for acquisitions made after April 4, 1969, but only if the trade-date was after April 4, 1969.
Context
Executive Order 11464—Modifying Rates of Interest Equalization Tax
04/02/1969