- Due to the Peace Treaty of China and Japan in 1978, the Chinese government agreed to officially forgive the past misdeed. So now, the Japanese politicians refuse to apologize to the surviving comfort women according to the treaty.
- Also, the right wing politicians of Japan reject the fact that the comfort women were abducted. They announced that the women were voluntary and paid.
- Cultural reasons also hold some survivors to speak out and fight for their rights, which also restrained the evidence collection.