Those reservations fell by the wayside as a wave of anti-Mexican animus, triggered by an economic recession, led the Immigration and Naturalization Service to adopt a highly militarized approach to immigration law enforcement, with Operation Wetback at its center.

然而，一场经济衰退引发了反墨西哥敌意浪潮，继而导致移民归化局开始采取高度军事化的移民执法方针，“湿背客行动”就是这一方针的核心产物，先前的保留政策便纷纷被弃置一旁。

But meanwhile, the attorney general gets the Immigration and Naturalization Service to open an investigation that leads to Chaplin being banned from returning to the U.S. after his trip to England.

但与此同时，司法部长要求移民和归化局展开调查，导致卓别林在英国之旅后被禁止返回美国。

I didn't realize how controversial Chaplin was and how many different agencies had investigated him - the FBI, the CIA, the Immigration and Naturalization Service, the Post Office, the House Un-American Activities Committee.

我没有意识到卓别林有多么有争议，也没有意识到有多少不同的机构调查了他——联邦调查局、中央情报局、移民和归化局、邮局、众议院非美活动委员会。