Foreign Influence was published by Atria Books in 2010. Simultaneous terrorist attacks in Rome and the American heartland appear unconnected — different methods, different targets, different apparent motives. Harvath discovers that they are coordinated: a sophisticated operational command is using encrypted communications and social media to direct attacks across multiple continents while maintaining plausible separation between the cells.
The novel engages with the evolving nature of terrorist coordination in the digital age — the ability to plan and direct operations without physical meetings, dead drops, or the traditional tradecraft that intelligence services are trained to detect.
Digital Terrorism
Thor’s early exploration of social media as a tool for terrorist coordination anticipated developments that intelligence agencies would subsequently document extensively. The novel’s depiction of encrypted communications and distributed command networks was prescient for 2010.
Collecting Foreign Influence
First edition (Atria Books, New York, 2010): Boards with dust jacket.
Approximate market values:
- Fine in dust jacket: $15–$30
- Signed first edition: $30–$80
Projected values (2026–2036): Modest appreciation.
Frequently Asked Questions
How realistic is Thor’s depiction of encrypted terrorist communications? Highly realistic for 2010. Intelligence agencies have since confirmed that encrypted messaging apps and social media became primary coordination tools for terror networks — a shift Thor documented before it was widely understood.