War transformed open scientific exchange into guarded state secrets

Evidence

What in peacetime represented the normal commerce of scientific exchange now became closely guarded state secrets. — Andrew Pettegree, Arthur der Weduwen, The Library- A Fragile History, 733

Categorization

• corroborated: 2 independent passages support this claim — Andrew Pettegree, Arthur der Weduwen, The Library- A Fragile History, 733
• XREF: connects to: Secrecy suppresses knowledge, enforcing historical amnesia. — Nicholson Baker, Baseless- My Search for Secrets in the…, 1085; Munitions control expanded into raw materials, power, labor, and research — Clara E. Mattei, The Capital Order: How Economists…, 141

Broader Connections

• Secrecy suppresses knowledge, enforcing historical amnesia. #expands (0.55) — Nicholson Baker, Baseless- My Search for Secrets in the…, 1085