Spraying aircraft over the Yalu River aimed to establish credibility of the propaganda.

Evidence

In this case a flight of aircraft spraying an area extending for a considerable distance along or near the Korean bank of the Yalu River is indicated. — Nicholson Baker, Baseless- My Search for Secrets in the…, 1213

Categorization

• corroborated: 2 independent passages support this claim — Nicholson Baker, Baseless- My Search for Secrets in the…, 1213