Oscar Carrillo, from Chile (foreground), and Macedonio Orihuela, from Peru, tend sheep on a ranch near Pine, Idaho.
祖籍智利的奥斯卡·卡里略（前景）和祖籍秘鲁的迈克多尼奥·奥利维拉正在爱达荷州的潘恩牧场照顾羊群。
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The FBI sent agents to assist in the investigation, but there was no immediate indication of terrorism or sabotage, said Judy Orihuela, spokeswoman for the FBI's Miami field office.