It is also a warning, the seemingly amoral goal of international standardization is in fact a shield behind which less public-spirited interests may seek their own ends.

它也是一个警钟，表面上国际标准化的非道德目标，实际上只是某些私心集团寻求其自己利益的障眼法。

youdao

Engineers believed the warning signal was wrong and the shield was locked.

VOA: special.2009.06.17

" Instead, "the aim should surely be a global defense shield to which Britain could contribute its early warning radars as well as much-needed political and diplomatic support.

CENTERFORSECURITYPOLICY: Safire makes the case for a missile defense for allies and US