Sure these workers are brave....going into an unknown situation.
But..
Don't fall for the writings of journalists who are feeding the hysterical fear of a nuclear incident that has killed no one and probably never will.
In the similar hysteria over Chernobyl, the disaster that killed 65 people, the media-whipped panic stampeded up to 200,000 women into having abortions for fear of birth defects.
Once again, it seems the fear of radiation is hurting people more than the radiation itself.
The highest radiation level that had been detected in Fukushima Prefecture by the evening of March 17 was 30 microsieverts (a microsievert is one-one thousandth of a millisievert) or lower, with most measurements at around 2 to 5 microsieverts. Compare that to a CT chest scan, a single one of which will expose the recipient to approximately 6,900 microsieverts. Even if a level of 30 microsieverts were to be maintained, one would have to stand outside for 230 continuous hours to be exposed to the same amount of radiation as a CT scan.
Here is a brilliant video explanation of what really happened, that makes you astonished such an old plant could survive such an unimaginable challenge, not least the tsunami which took out its fuel tanks and soaked its electronics.