it pointed out that neither the jsc or ministry had personnel with enough experience to handle such a large project. work began here to prepare the site for the construction of the national stadium. a ceiling of $1.3 billion has been set for the costs. officials say the new building will be finished in april 2020, well ahead of the opening of the olympic games. people are now waiting for a new design to be chosen that has gone through a process that's transparent. nhk world, tokyo. >>> authorities in the u.s. city of seattle are trying to figure out why a bus and an amphibious tour vehicle collided. two smallerehicles were also involved, four killed, and 50 others taken to nearby hospitals. >>> rescue crews say 15 people are seriously injured. the bus was carrying employees and foreign students from north seattle college. a representative with the college says the four dead are from abroad. a hospital official told nhk that four japanese men are receiving medical treatment. a japanese student who spoke to us by phone says the group was heading to an orientation event. he says the bus