the system predicted that radiation was moving toward yamazaki and other residents. but the government didn't share its predictions with the public, and the interim report says the government didn't even plan on using the system when it arranged its evacuation. yamazaki and 1,200 others stayed in the shelter for about four days. >> translator: i keep thinking i would have evacuated further away from the plant if i had had the relevant information. >> the interim report points out what the government should have done to tackle the accident. earlier we spoke with nhka hiroshi yolk ohka what. >> the report says it needs to be ready for any accident. be ready to clearly communicate with residents. my reading of the report suggests authorities did not understand the kinds of risks. they weren't prepared, because they stuck to the yesterday of absolute safety. they carried out the same evacuation drill over and over again. they weren't ready for the scenario they faced on march 11th. the panel also mentioned the government needs to keep the international community better i

professor hideo yamazaki of kinki university, who specializes in radioactive materials, says the lack of crisis management is to blame for the latest development. >> translator: cases like this wouldn't have happened if the government inspected the materials earlier. the government should set standards as soon as possible. >> the industry ministry says it will make inquiries to other quarries in the prefecture to find out where their gravel was shipped. >>> crews in northeastern japan have been working almost nonstop over the past ten months removing rubble, repairing buildings and putting up new structures. but the march 11th earthquake and tsunami didn't just wreck infrastructure. it put countless cultural assets at risk. saving these national treasures is proving to be a difficult job as we look in this week's "the road ahead." nhk world's kazuhiro takahashi reports. >> reporter: daidu sanpei, the curator in fukushima prefecture tomioka is in the no entry zone which was created after the nuclear crisis. the town government has a makeshift office in another municipality outside the