No.
“In no case shall information be classified… in order to: conceal violations of law, inefficiency, or administrative error; prevent embarrassment to a person, organization, or agency… or prevent or delay the release of information that does not require protection in the interest of the national security.”
—Executive Order 13526, Sec. 1.7. Classification Prohibitions and Limitations
Not if it exposes wrongdoing in the public interest.