Why do people tend to unnecessarily fear some risks, yet inadvisably discount others?

为什么人们会不可避免地害怕风险，却对别人的危险毫不担心。

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Judge Burr said Mr Thorley was not on trial for acting inappropriately or inadvisably and a jury properly directed by a judge could not safely convict on eight of the charges.

BBC: Some head sex charges withdrawn