F.B.I. Closes Anthrax Letters Case，他们又制造一个历史谜团 - 英

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WASHINGTON — More than eight years after anthrax-laced letters killed five people and terrorized the country, the F.B.I.on Friday closed its investigation, adding eerie new details to its case that the 2001 attacks were carried out by Bruce E. Ivins, an Army biodefense expert who killed himself in 2008.

八年多之后，米国联邦调查局于周五为曾经导致五人死亡并令全美恐慌的炭疽病毒信案件结案，新增了十分诡异的细节：2001年的那次病毒攻击由美国陆军生物战专家Bruce E. Ivins发动，但他已于2008年自杀。

阅读全文：http://www.nytimes.com/2010/02/20/us/20anthrax.html