Years ago a Japanese acquaintance applied for a green card when her American husband decided to move back to the United States. Someone told her she should not say she once voted for the Japanese Communist Party (JCP) during her interview, otherwise U.S. Immigration would reject it. As far as I know, applicants' voting decisions have never been an issue for the State Department — political party affiliation, maybe — but in any case, the anecdote points out America's reputation for paranoia regarding socialist thought.