evidence: Dealing with large amounts of classified information over a career increases the possibility of accidentally sharing a small nugget. Sharing classified information knowingly, or revealing information one should know is sensitive, is a different matter. [...] Executive Order 13256 spells out who specifically may classify information. Authority to take certain pieces of information, say the existence of a weapons program, and classify it top secret is given only to specific individuals. They include the president and vice president, agency heads and those specifically designated by authorities outlined in the executive order.