" _+ E" J: l+ G6 x% ]7 b2010年核评估报告里表示,美国的核弹仍然可以用于威慑对美国及盟友的常规打击,这里面的法律后面还是存在的。 $ k% p9 {6 s2 q2 \1 I7 tthere remains a narrow range of contingencies in which U.S. nuclear weapons may still play a role in deterring a conventional or CBW attack against the United States or its allies and partners.