Margaret Sanger was traveling from Detroit, where she spoke on February 15, to San Francisco. The Japanese government had yet to publicize its decision to bar her entry. They considered allowing her to enter but not to speak on birth control, but there was concern that cancelling Sanger's visit might give new impetus to the fledgling Japanese birth control movement. Sanger's visit had been announced about a month earlier, and the Japanese press was already covering her, publishing translations of her articles in Kaizo and interviewing Baroness Shidzue Ishimoto, who had become birth control's most notable advocate in Japan.
February 16, 1922
Even if [Sanger] promises not to give a lecture on birth control [in Japan], those who support her idea will organize dangerous campaigns. It will be difficult to handle them, and if we need to expel her from the country, the situation will become all the more complicated. In any event, please do as I directed in my telegram no. 18.[A]