Burden discussed assassination plans against Lumumba with Belgian officials.

Evidence

When Burden became ambassador to Belgium in 1959, he discussed assassination plans with Belgian government officials. “The Belgians were sort of toying with the idea of seeing to it that Lumumba was assassinated,” Burden recalled in his oral history, held at Columbia University. — Nicholson Baker, Baseless- My Search for Secrets in the…, 538

Categorization

• corroborated: 3 independent passages support this claim — Nicholson Baker, Baseless- My Search for Secrets in the…, 538