需要提供一个简单而又科学权威的方法，告知消费者什么是健康的选择。
"There is a need to provide a simpler approach to empower consumers inknowing about healthier choices, " he said.
实现这种解决方案的一个快速的方法是，让一个基于PKI的证书权威为请求客户机颁发一个PAC身份标识证明。
A quick way to implement this solution is to let a PKI-based certificating authority issue a tamper-proof PAC identifier to the requesting clients.
科学无关权威，一如穿白大褂的未必是医生。科学关乎其遵循的方法。
Science isn't about authority, or white coats, it's about following a method.
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