nhk world's takafumi terui shows us how their legacy are being honored. >> reporter: rain poured down on hiroshima peace memorial park. still, people came. the survivors were among them. >> translator: when i look back at what happened, i just can't hold back my tears. i keep thinking, why, why? >> translator: i came here to pass on the horrors of war and memories of the bombing to my children's generation. >> reporter: and that's why many others gathered here too. by the time the ceremony started, about 45,000 people had packed into the park. u.s. ambassador caroline kennedy was among the representatives from 68 countries. at 8:15 a.m., participants observed a moment of silence to mark the time the bomb was dropped. [ gong sounding ] the ceremony comes weeks after the japanese government changed its security policy. cabinet members reinterpreted the constitution to allow japan to exercise its right to collective self-defense so it could help a close-related country under attack. hiroshima mayor kazumi matsui alluded to the change in his speech. >> translator: the japanese government

nhk world's takafumi terui has more from hiroshima. >> reporter: huge amounts of debris, including piles of lumber from crushed houses are covering the whole area that i can see. the torrential rains started in the early hours of the morning and it just kept coming. >> can you hear me? rr i'm surrounded by mud pools of water and debris. the mud here is sticky. and people have seen landslides before. still, many are shocked by what they've seen come down from above. some have had their water and power cut off. but more help is on the way. about 2,500 police officers, firefighters and safety personnel joined those already here. they're searching for the missing here and in other areas, as well. >> thanks very much. we'll have more on this later on in the program. >>> south korean and japanese government officials have argued of late over the views of territory and history. south korea's next ambassador has promised to improve relations. he's scheduled to leave for tokyo on saturday. he spent his childhood in kyoto and studied for a year there in the university. he served as secretary journ

takafumi terui, nhk world, hiroshima. >>> officials at the u.s. central bank are discussing changes of interest for everyone from small businessman to traders at big financial institution. ai uchida joins us from the business desk. >> what the people at the federal reserve say can move markets. that's why investors are always looking into policymakers' comments to glean what the fed might do next. for years they kept the interest rates near zero but they hinted that a strong recovery in the job market could lead them to change their approach. the policymakers released the minutes of their meeting last month. many of them said the labor market is improving faster than they had expected and they said it might become appropriate to begin removing monetary policy accommodation and raise interest rates sooner than they anticipated. but some policymakers argue there are still too many people who remained unemployed for a long time. and they point to others who have not managed to get a full-time position. most of them agreed they need to make sure the l