Weeks later, Mr. Carlson said on his show that he could not endorse
Dr. Yan’s theories. Regardless, he welcomed her back as a guest to
detail her latest claim: Her mother, she told him, had been arrested
by the Chinese government.
The Chinese government often punishes critics by harassing their
families. But when The Times reached Dr. Yan’s mother on her
cellphone in October, she said that she had never been arrested and
was desperate to connect with her daughter, whom she had not spoken
to in months.