Republicans assert that an expanded government rolewould threaten the current private system, separate from the federally administered Medicare system for the elderly, and add to the government budget deficit.

VOA: standard.2009.09.09

What we don't get here is a sense of whether there really is an alternate secret postal system that serves a sort of underground of private networks.

在这里我们所不明白的是，是否真的存在一个,提供地下的,私密的通信服务的，秘密邮政系统。

耶鲁公开课 - 1945年后的美国小说课程节选

Most important,the leaders of the new system would be chosen by the government-- not by private business.

VOA: special.2010.09.23

That pretty much revealed that people were satisfied with the private system and that Mrs.

CENTERFORSECURITYPOLICY: Argentinas Kirchner seizes private pension funds

One virtue of a private system is that competition allows choice and experimentation.

WSJ: Of NICE and Men

The private system, which now comprises ten funds whose managers include Britain's HSBC and Spain's BBVA, has had its problems.

ECONOMIST: Argentina