CIA Director Michael Hayden is going after the agency's independent watchdog, Inspector General John Helgerson. Hayden wonders if Helgerson -- who is not appointed by the CIA director -- hasn't gone too far in investigating how the agency conducts detentions and interrogations.Of course being the CIA's inspector general doesn't make someone infallible. But I'm curious about how anyone could be excessively zealous when investigating allegations of torture. If Helgerson hasn't been employing torture in the course of his investigations, I don't see how there could be a problem.