While there is good news from the crippled nuclear plant in Japan, another risk from radiation that we haven't heard much about may do more harm than the radiation itself. The Japanese government, and the company in charge of the crippled nuclear complex, are struggling with their risk and crisis communications, and their missteps are fueling mistrust and anger, which magnifies fear and stress, which may do more health damage than the radiation that has been released.
Some efforts have been outstanding. The constant presence of Chief Cabinet Secretary Yukio Edano, providing updates several times an hour, dressed in the work clothes of an emergency responder, not the suit and tie of a bureaucrat, and responding to questions without a script and with concern, has been very important. But Tokyo Electric's (TEPCO) apology, days into the crisis, even though made by company President Masataka Shimizu, seemed insincere against news that the company had to be ordered by Prime Minister Naoto Kan to keep it's workers at the site, despite radiation danger, to try to bring the nuclear reactors under control. Further, it took four days for the government and TEPCO to coordinate communications, and the disjointed and incomplete information released in those first few critical days created grave mistrust in both the company and the government. Edano himself said yesterday "In hindsight, we could have moved a little quicker in assessing the situation and coordinating all that information and provided it faster.''
It is impossible and unfair to criticize specifics. At this distance it is hard to know exactly how things are playing out, what's being said, and harder still given that a lot is lost in translation. We also must respectfully remember this is an extraordinary crisis, with profound changes happening minute-by-minute, and the people fighting the fires can't stop what they're doing to pick up the phone and update headquarters on the latest developments moment-by-moment.
But it is clear than not nearly enough attention has been given to the importance of risk communication as a key part of managing the overall risk from these events. And that bears squarely on the health and safety of the public. Risk management in a crisis has to include not just the threat itself but also how people perceive and respond to the threat. Risk communication is a vital tool; for managing that part of the overall risk. How would you feel if messages about possible danger are inconsistent, and you learn things from the press that the government or company knew but didn't tell you? How does it feel when the Japanese government says radiation levels outside the plant are low and safe but experts from around the world sound more worried, or when the head of the IAEA, Yukiya Amano, has to scold the Japanese government by publicly asking them to share more information with the IAEA itself. How does it feel to know that TEPCO, and to a lesser degree the government, has a history of being less than forthright and open about problems at other nuclear facilities? Press reports have revealed that the company has frequently been purposefully deceitful about nuclear problems at other sites in the past. See "Japan Disaster Caps Decades of Faked Reports, Accidents" Stunningly, all these mistakes have been made in a country which has the most horrific first-hand experience with the frightening risks of radiation, albeit two generations ago, in Hiroshima and Nagasaki.
In a word, that sort of poor risk communication will make you feel mistrustful. And mistrust in the people who are supposed to keep you safe translates into anger and worry, which causes all sorts of serious health risks. The likelihood of Post Traumatic Stress disorder, depression, and anxiety goes way up. Biologically, fear produces chronic stress, which increases blood pressure and raises the risk of cardiovascular disease, suppresses the immune system and raises susceptibility to and severity of infectious disease, increases the likelihood of Type 2 diabetes, suppresses growth, memory, and fertility. The risk from how people perceive risk, is as real as the physical danger itself, perhaps more.
We know that from previous nuclear crises. In "Chernobyl's Legacy", a sweeping review of Chernobyl at the 20th anniversary in 2006, the UN found that "The mental health impact of Chernobyl is the largest public health problem unleashed by the accident to date." In a review of how the government handled Three Mile Island, a senior Nuclear Regulatory Commission official who had been involved said of the poor communication "What we had done to these people was just outrageous. We had frightened them so bad, they thought they were going to die." Stunningly, tragically, a similar inattention to effective risk communication seems to be happening in Japan.
There are many reasons for this poor risk communication; Arrogance and institutional self-protection and engineering/scientific hubris on the part of the company, the tendency by risk managers to avoid being honest with people about scary news for fear that it will make people afraid (which is a common but thoughtless mistake, since people are already afraid and the lack of openness and the mistrust it produces make things FAR worse), and a combative/defensive relationship with an aggressive, alarmist news media.
But the biggest mistake is an obvious failure to recognize that risk communication is a vital part of overall risk management. Far too little respect has been paid to the risk caused by the way people perceive and respond to risk. The peril is not just the radiation. It's people's fears of radiation. Whether those fears are consistent with the evidence of the actual physical risk (they aren't) doesn't matter. Fear is real, and does real harm. Tragically, though history has taught us these lessons, they don't appear to have been learned, and the health of the Japanese public is at risk as a result.