Caroline Kennedy's interview refusal behind the broadcaster's 'cautiousness'

Katsuto Momii, the new head of Japan's NHK public broadcaster expressed "sincere remorse" on Tuesday amid the mounting criticism of his remarks about Japanese wartime atrocities.

As worldwide anger grows over several NHK executives' recent inflammatory comments on Japan's behavior during World War II, the new US ambassador to Japan, Caroline Kennedy, rejected an NHK interview request, Japan's Kyodo News Agency reported.

Japan's Mainichi Shimbun newspaper reported that Momii said at an NHK budget meeting held on Tuesday by the ruling Liberal Democratic Party: "I will be more cautious by understanding a situation before making a statement in the future.

"To eliminate the mistrust - which I am responsible for - I will work and fully engage my heart and soul."

Kennedy, the daughter of the US president John F. Kennedy, turned down the NHK interview request because of the "controversial remarks about wartime sex slavery made by the president of the company", Kyodo quoted sources close to the decision-making process as saying on Monday.

Tadamori Oshima, former deputy chief of the ruling party, told Momii that "mistrust is coming from inside and outside (NHK). It is the responsibility of the president to rebuild trust".

Momii made international headlines last month with his defense of the Japanese military forcing women in occupied countries into sexual slavery in the 1930s and '40s. When asked about "comfort women" at a news conference in late January, he said such institutions of sexual slavery existed in "every country" and that it is only considered wrong based on "today's morality".

Media reports said the NHK chief is believed to be close to Japanese Prime Minister Shinzo Abe, who has repeatedly called for revising Japan's postwar pacifist Constitution to allow a Japanese military buildup.

Nobuo Ikeda, a professor at Jobu University in Japan's Gunma prefecture and a former NHK correspondent, said Abe probably aimed to use NHK for publicity overseas.

But "the president and board members cannot and should not exert influence upon the field operations" of NHK, Ikeda said in a recent article.

Liu Jiangyong, a professor of Japanese studies at Tsinghua University in Beijing, said Abe and his followers in the NHK are challenging Washington's outlook on history and World War II, and their inflammatory remarks "have irritated the US".

"Obviously, the Japanese Cabinet has not followed suggestions from Washington to refrain from provocation and repair the strained relationships with China and South Korea. Washington has to place Abe's persistence in check," Liu said.

Adding to the controversy, Naoki Hyakuta, a best-selling author on Japan's kamikaze fighter pilots and an NHK governor, said this month that the 1937 Nanjing Massacre - committed by the invading Japanese army - "never happened", and that the United States staged the postwar trial of Japanese leaders to cover up its own war crimes.

A US embassy spokesman responded sharply, telling Time magazine: "These suggestions are preposterous. We hope that people in positions of responsibility in Japan and elsewhere would seek to avoid comments that inflame tensions in the region."

Jackson Diehl of The Washington Post wrote in a column on Monday that Abe is leading Japan "into one of those dynamic and potentially dangerous eras".

"Abe has appeared to pivot toward the hard-line nationalism that has always been an element of his political makeup. He has managed to set off alarm bells not only in predictable places - China and South Korea - but inside the very US administration he hoped to partner with."

Wang Xu contributed to this story.

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