An interesting theory of risk perception and communication is put forward by Kahan (2012) in the context of climate risk.
Archives For Groupthink
There are few purely technical problems…
The Washington Post has discovered that concerns about the vulnerability of the Daiichi Fukushima plant to potential Tsunami events were brushed aside at a review of nuclear plant safety conducted in the aftermath of the Kobe earthquake. Yet at other plants the Japanese National Institute of Advanced Industrial Science and Technology (NISA) had directed the panel of engineers and geologists to consider tsunami events.
Often times we make decisions as part of a group and in the environment of the group there is a strong possibility that the cohesiveness of the group leads members to minimise interpersonal conflict and reach a consensus at the expense of crticially evaluating and testing ideas.
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Critical Uncertainties 