"Because quite often the arguments that a defense deal is essential on national security grounds then that becomes justification for shielding it from public scrutiny."

VOA : standard.2009.10.01

And then there's the whole vast category of racial defense and justification of slavery.

随后有大篇幅的种族辩护,以及奴隶制合法化的阐述

美国内战与重建课程节选 : 耶鲁公开课

Now, just to give you a sense of how cold and calculated this business was, and how in many ways the first defense or justification of slavery in America is of course it certainly is by the late Antebellum Period it is an unabashed economic defense, as we'll see.

以上只是为了让你们体会到,这种交易是如何的冷酷而精明,以及战前后期第一次,美国奴隶制度的保卫与正名之战,不管怎么看,都毫无疑问,是一场赤裸裸的利益保卫战,正如我们所见

美国内战与重建课程节选 : 耶鲁公开课