When answering the following questions, explain the
relationship to critical infrastructure protection.
Define each of the following related to information
sharing: Need to Know, Sensitive But Unclassified (SBU)
safeguards, For Official Use Only (FOUO), Critical Infrastructure
Information (CII), Open-source information and intelligence, Clouds
and concealed conduits, Freedom of Information Act (FOIA)
exemptions, Enforcement of Section 214 of the Homeland Security
Act.