| http://www.w3.org/ns/prov#value | - PPD may refer to:SecurityIn the United States, the Protective Services Detail, also known as Personal Protection Detail or Personal Protective Division (PPD), the Inner Circle of Secret Service appointed to protect high-visibility or high-risk individuals and/or groups including the President of the United States, the Vice President of the United States, visiting Heads of State, Presidential presu
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