Here are a few ways to rewrite that title in a formal tone:

• Former Intelligence Chief Warns of Risks Posed by Disinformation and Social Polarization
• Former Intelligence Official Issues Warning Regarding the Threat of Disinformation and Division
• Ex-Intelligence Director Cautions Against the Dangers of Misinformation and Societal Fractures

Recommendation: The first option is the most balanced and professional.

Here are a few options for a formal revision of your title:

• Option 1 (Direct and Academic): The Ebola Outbreak in Africa: A Crisis Rooted in History, Not Misinformation
• Option 2 (More analytical): Beyond Misinformation: The Historical Dimensions of the Ebola Crisis in Africa
• Option 3 (Sophisticated): Examining the Historical Foundations of the Ebola Crisis in Africa: A Critique of the Misinformation Narrative

Recommendation: Option 1 is the most balanced for a formal paper or article.

Here are a few options for a formal equivalent, depending on your focus:

• Public Sector Responses to Misinformation, Disinformation, and Radicalization (Most direct and professional)
• Addressing Misinformation and Radicalization: Strategies for the Public Sector (Action-oriented)
• Strategic Public Sector Interventions Against Misinformation and Radicalization (More authoritative/academic)

Recommendation: The first option, “Public Sector Responses to Misinformation, Disinformation, and Radicalization,” is the standard format for formal reports or seminar titles.