still allowed, full background documents have been lost, only struggles and moans of the subject remains on this tape. Tip $30 for the full 29:58 video ($1 per minute). 差點被遺忘的歷史如今得到解密，內容記錄當年仍算合法的機密實驗，具體的文檔因年代久遠已經遺失，只有當年實驗對象的掙扎和呻吟被完整記錄下來。打賞$30觀賞完整29:58影片。 SHOT
