It is under consideration by the customs authorities in the US to ask questions on immigration judgment as "What is your SNS account name such as Twitter?"

ByStein Magne Bjørklund

United States Customs and Border Protection BureauI am trying to introduce the process of "letting me declare SNS accounts and user names" to people entering the United States from abroad.

Federal Register | Agency Information Collection Activities: Arrival and Departure Record (Forms I-94 and I-94 W) and Electronic System for Travel Authorization
https://www.federalregister.gov/articles/2016/06/23/2016-14848/agency-information-collection-activities-arrival-and-departure-record-forms-i-94-and-i-94w-and#addresses

US Customs wants to collect social media account names at the border | The Verge
http://www.theverge.com/2016/6/24/12026364/us-customs-border-patrol-online-account-twitter-facebook-instagram

New proposal would ask foreign travelers for social media info | TheHill
http://thehill.com/policy/technology/284757-new-proposal-would-ask-foreign-travelers-for-social-media-information

Citizens of a specific country can enter the United States without a visa for tourism / commercial purposes within 90 daysVisa Waiver ProgramMany people who enter the United States without a visa, such as those who apply, will submit an entry / exit form.United States Department of Homeland Security(DHS)The proposal is an attempt to provide a blank space to let you fill in your SNS and user name arbitrarily, along with the phrase "Please write information related to activities on the Internet" at that time. Declaration is not an obligation, it is optional, and collected SNS information can be used for deterrence and investigation of crime activity by DHS.

DHS has made such a proposal occurred in December 2015San Bernardino gun shooting incidentHaving received that. Tashfine Marik, who died of a San Bernardino gun shooting incident, has acquired a fiancé visa and has legally migrated to the United States and posts pledging allegiance to IS with a Facebook account before shooting It turned out that it was. Since criticism of whether it could have prevented the case if close investigation of Facebook post before issuing a visa burst out, DHS is now "to identify a potential threatening person, SNS It is under pressure to scrutinize posts ".

ByJpmatth

In response to this proposal, there is also a doubt that "Asking" Do you post online using pseudonyms? "Is useful". In addition, it is now that the proposal will be officially examined, but prior to that the United States Customs and Border Protection Bureau is requesting comments from the general public via e-mail.