There is video of the prime minister (with English translation) making that announcement during a news conference earlier today.
Also today, "92 members of 54 households from Kawauchi Village" were allowed to briefly visit their homes, which are within the evacuation zone around the Fukushima Dai-Ichi power plant, which was crippled by the March 11 earthquake and tsunami.
Japan's NHK reports that:
"The evacuees, aged from 21 to 85, put on protective clothing and received dosimeters and walkie-talkies at a gymnasium before entering the zone in 5 groups by bus. During the visits, they collected valuables and checked on livestock. They then returned to the gymnasium and underwent radiation checks."
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