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.