The agent was reportedly arrested with a large sum of money, technical devices and written instructions for the agent he had tried to recruit.

BBC: 'CIA agent intercepted' in Moscow by FSB

At the time of his detention, Mr Fogle was wearing a blond wig and reportedly carrying a large sum of money, as well as technical devices and written instructions for the Russian agent he had tried to recruit.

BBC: Moscow holds talks with US ambassador over spy scandal

This approach of having a software agent negotiate trust with the web site for you requires some new technical innovations.

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