The first boss of CIA's Tokyo branch is Paul Bloom.
He's known for teaching Donald L. Keene Japanese language and culture.
And he is also famous for good friends with Shigeru Yoshida,
grandfather of finance ministar Asou.
Anyway, Mr. Keene treated Japanese captives very "friendly" and
had got a lot of informations from them very easily.
However, the most successful intelligence group was Hawaian "Nisei" in MIS.