Center for Immigration Studies 不是移民局，是一個反移民組織。

The Center for Immigration Studies (CIS) is an American anti-immigration think tank. It favors far lower immigration numbers and produces analyses to further those views. The CIS was founded by historian Otis L. Graham alongside eugenicist and white nationalist John Tanton in 1985 as a spin-off of the Federation for American Immigration Reform (FAIR). It is one of a number of anti-immigration organizations founded by Tanton, along with FAIR and NumbersUSA.

Reports published by CIS have been disputed by scholars on immigration, fact-checkers and news outlets, and immigration-research organizations.

https://en.wikipedia.org/wiki/Center_for_Immigration_Studies

我更相信wikipedia

https://en.wikipedia.org/wiki/Sanctuary_city