but not yoshiko kiuchi. she lost too many friends and neighbors. her garden, her flowers represent a good memory, but not a longing to return. "no, i was living a happy life," she said. "this was a very beautiful place. i do not want to live here anymore." for many here, no amount of engineering will be enough to wall off the sadness and the fear. >> brown: it's science thursday on our website. you'll find hari sreenivasan's interview there with a chemistry thermodynamics, kinetics and interview there with a chemistry professor who writes poems about thermodynamics, kinetics and atomic reactions. you also can watch miles' previous stories from japan. >> woodruff: much of the action around occupy wall street and similar movements was centered around marches and demonstrations today. but police and protesters clashed in several cities. life proceeded as normal inside the new york stock exchange this morning. but outside, a day of action dawned for the occupy movement, marking two months since its inception. more than a thousand demonstrators wanted t