Twenty-five cities were specified as suitable for gas attacks after Tokyo.

Evidence

After Tokyo, twenty-five cities were specified as “especially suitable for gas attacks.” — Nicholson Baker, Baseless- My Search for Secrets in the…, 1076

Categorization

• corroborated: 2 independent passages support this claim — Nicholson Baker, Baseless- My Search for Secrets in the…, 1076