[whatusername]

Looking at the DoJ's indictment of Assange -- they stated:

The indictment also charges Assange for his posting of a narrow subset of classified documents on WikiLeaks that allegedly identified the names of human sources—including local Afghans and Iraqis who were assisting U.S. forces in theater, and those of journalists, religious leaders, human rights advocates, and political dissidents living in repressive regimes. Assange thereby is alleged to have created grave and imminent risk to their lives and liberty.

(Source: https://www.justice.gov/opa/press-release/file/1165636/downl... )

That would appear to be a specific example of secrets that cannot be published?