All of us know there are new threats that must be faced — or, perhaps, old threats in new and dangerous combinations: new forms of terrorism, and the proliferation of weapons of mass destruction.
【正确答案】：我们都知道新的威胁必须要面对——也许旧的威胁以新形式出现，也许是两者相结合：恐怖主义的新形式，大规模杀伤性武器的扩散。
