Rubuta ci gaba don wannan sakin layi - A ƙarshen 1938, jim kaɗan bayan Kristallnacht
, An sanya littattafan Kahn a cikin jerin "rubuce-rubuce masu cutarwa da maras so" kuma ban da littafinsa game da jima'i, "Unser Geschlechtsleben", 'yan sanda sun haramta shi kuma duk kwafin da ake da shi sun hallaka. An yi amfani da zane-zanensa a cikin ayyukan da, wani marubucin likitancin Nazi ya amince da shi.