ntsb chairman debra hurstman is scheduled to provide a comprehensive update later on thursday in her first news conference on the dreamliner problems. >>> a government spokesperson says japan will likely revise its target for cutting greenhouse gas emissions. he says the 25% reduction target set by the previous government is excessive and unrealistic. chief cabinet secretary yoshihide su g, a said his liberal democratic party said the target was unachievable. previously the last democratic party government pledged to reduce emissions by a quarter from 1990 levels by the year 2020. >>> japanese researchers have succeeded in using stem cells to reproduce hair follicles. the project involved using induced stem cells or ips cells which have the potential to develop into any tissue or organ. medical applications using hair follicle cells have been limited until now because scientists lacked ways to reproduce them. the researchers at keio university managed to cultivate human cells into fallicular cells by adding certain proteins. they cultivated the cells with skin cells from a newborn mo