from the besieged arab red crescent. western diplomats say that iran is trying to clean up something at its military base. inspectors believe the site may have been used to test triggers for nuclear bombs. this is what a solar flair looks like up close. the flair erupted and was captured by scientists in this dramatic video by nasa. we should be feeling its effects today as radiation distorts the magnetic field possibly disrupting the gps signals. those are the headlines from cnn. i m juanita raj paul. world business today starts now. good morning from cnn london, i m nina dos santos. and a very good afternoon from cnn hong kong, i m andrew stevens. welcome to world business today. the top stories this thursday, a boom town in the midst of devastation. we ll tell you about a japanese city doing brisk business as its neighbors struggle to rebuild. the deadline for the greek debt swap is fast approaching. the signs so far are good as people sign up to push the dea