Some of the many dumb things about the Guccifer story.

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23. Probably extradited to establish probable cause

And to establish basis for evidence regarding Blumenthal emails and thus probable cause for investigating Clinton's server for containing national security information and through that the Clinton Foundation emails. Everything is being done carefully by the book for probable cause, chain of custody, etc. and avoid any risk from the exclusionary rule.

Whether Guccifer himself actually hacked Clinton's server or email may be interesting or even otherwise important, it is not required for establishing the cases in the likely criminal investigations of Blumenthal or Clinton and her staff. It is mostly a distraction from the core issues.