Few women contacted for this article spoke for attribution.
(Mr. Tounkara, like the other musicians interviewed for this article, spoke through an interpreter).
He, like most of the journalists interviewed for this article, spoke on condition of anonymity.
The officials, like others interviewed for this article, spoke on condition of anonymity.
Mr. Filgate, who declined to be interviewed for this article, spoke for Chevron.
He, like others interviewed for this article, spoke on the condition of anonymity to discuss internal conversations.
The officials interviewed for this article spoke anonymously so that they could discuss debates over classified matters.
(She and several other people interviewed for this article spoke on the condition that their last names not be used).
"Blackwell was left totally empty," said Mr. Mendoza, who, like the other residents quoted in this article, spoke in Spanish.
The officials, like others interviewed for this article, spoke on the condition of anonymity because the investigation is continuing.
This person and others interviewed for this article spoke on the condition of anonymity because the details of the case are not public.
