Comments by "Mark Campbell" (@markcampbell7577) on "Full video: "Face the Nation" correspondents roundtable" video.

  1. The Salk vaccine becomes common because it is more effective than synthetic spike protein antigen frozen or refrigerated vaccines that maybe using cell lines.
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  2. Homeland Security.
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  3. The birth of the department of Homeland Security was terrorism and those efforts have not been stopped.
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