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1·Former U.S. Navy Secretary Richard Danzig once described it as instruments of nonexplosive warfare.

美国前海军大臣理查德·丹兹格（Richard Danzig）曾将其描述为“非爆炸性战争”的工具。

2·And in that way, they offer a glimpse of a rapidly evolving class of dangerous threats that former U.S. Navy Secretary Richard Danzig once described as instruments of nonexplosive warfare.

于是，它们让我们看到了一种快速变化的充满危险的威胁，美国前海军秘书理查德·丹岑曾经将这些病毒称为发动“没有硝烟战争”的武器。