More than two years after the triple reactor meltdowns at the Fukushima No. 1 nuclear power plant, hundreds of thousands of residents of the Tohoku region of northeastern Honshu remain displaced, the power station teeters on the brink of further disaster and large swaths of northern Japan are so irradiated they'll be uninhabitable for generations to come. But today in Tokyo, it is as though March 11, 2011, never happened. The streets are packed with tourists and banners herald the city's 2020 Olympic bid; the neon lights are back on and all memories of post-meltdown power savings seem long forgotten.