据外媒报道，美国国土安全部计划扩大收集移民以及部分公民的在线活动数据，包括搜索结果和社交媒体信息。

国土安全部的计划针对的对象包括了近期的移民、绿卡持有者以及归化入籍的美国人，提议扩大收集的移民信息包括：国籍，居住国，美国移民局的在线账户，社交媒体账号、化名、相关可识别信息和搜索结果。

新的提议正处于评论期， 截至日期为 10 月 18 日。

The Department of Homeland Security is proposing to expand the files it collects on immigrants, as well as some citizens, by including more online data—most notably search results and social media information—about each individual.

The plan, which would cover data like Facebook posts or Google results, is set out in the Federal Register, where the government publishes forthcoming regulations. A final version is set to go into effect on Oct. 18.

The plan, reported by BuzzFeed, is notable partly because it permits the government to amass information not only about recent immigrants, but also on green card holders and naturalized Americans as well.

The proposal to collect social media data is set out in a part of the draft regulation that describes expanding the content of so-called “Alien Files,” which serve as detailed profiles of individual immigrants, and are used by everyone from border agents to judges. Here is the relevant portion:

The proposal follows new rules by the Trump Administration that require visitors from certain countries to disclose their social media handles, and allow border agents to view their list of phone contacts.

Those earlier measures alarmed civil rights advocates who questioned whether they would do much to improve security, and worried other countries would introduce similar screening of Americans. In response to the latest effort to collect social media data, the American Civil Liberties Union warned of a “chilling effect.”

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“This Privacy Act notice makes clear that the government intends to retain the social media information of people who have immigrated to this country, singling out a huge group of people to maintain files on what they say. This would undoubtedly have a chilling effect on the free speech that’s expressed every day on social media,” the group said in a statement.

The new rules are currently subject to a comment period until Oct. 18 but, if they go into effect as planned, they will add yet more data to “Alien Files” that can already contain information such as fingerprints, travel histories, and health, and education records.

Such repositories provide powerful intelligence-gathering tools, but brings potential privacy risks such as government surveillance or cyber-attacks.