people don't want to enter that danger zone. >> charles hadhawk in seoul, south korea. joining us to offer clarity on the setbacks, a writing fellow and author of "tropic of chaos, climb change." as we hear charles' report, it continues, setbacks continue day in and day out. while they make one step forward, something happens that they can't predict that accepts them two steps backwards. as we learn about the workers at fukushima having resorted to using sandbags to prevent radioactive water from leaking out, what does that say to you about the techniques that are being used in the highly volatile situation? >> one tng it showshey're operating the seof the pas. they don know where theyan put this close to