The U.S. government is now saying that the accidental online posting of a list of nuclear facilities did not compromise national security.

The 266-page document was mistakenly published on the government printing office Web site.

Certain pages of the document were marked highly confidential and sensitive.

The document listed the locations of both government and civilian nuclear facilities

The Department of Defense says they have gone through the document and are confident it did not jeopardize national security.