Prime Minister Yasuo Fukuda should make a clear apology over Japan's responsibilities regarding wartime sex slaves and lead his Liberal Democratic Party and the Diet to pass a bill recognizing what Japan did to those women, U.S. Congressman Mike Honda said Tuesday in Tokyo.

If there is no progress in Japan over the World War II "comfort women" issue, it is possible Honda and his fellow U.S. lawmakers may take fresh action, possibly by bringing another resolution to the Congress, he said.

"I think there can be (that possibility), but it has to be based on educating the public," said Honda, stressing that educating the Japanese people about their history should be one of the main purposes of such congressional action.