WASHINGTON (AP) — Federal energy regulators improperly allowed widespread access to a sensitive document that outlined specific locations where the nation’s electric grid is vulnerable to physical threats, a government investigator said Wednesday.

The document created by the Federal Energy Regulatory Commission should have been kept secret as a national security matter, Energy Department Inspector General Gregory Friedman said. Instead the information was provided in whole or in part to federal and industry officials in uncontrolled settings.

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