>From Robots and Empire, and formulated by R. Daneel Olivaw, if memory
>serves:
>
>A robot shall always act in the best interests of Humanity as a whole,
>regardless of the restrictions of the other Three Laws.

Basically, except that Olivaw didn't formulate it, Giskard did. Giskard just didn't have the capability to implement it. Following his one act of harming an individual in following the Zeroth Law, Giskard shut down, but not before communicating it to Olivaw, who set about orchestrating human history for the next ten thousand years or whatever in service to the Zeroth Law.

Baaah.

-- Sean --

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