Some of the comments seem a little disjointed from the details. According to the article, only information that's publicly available online is collected, and sp

Some of the comments seem a little disjointed from the details. According to the article, only information that's publicly available online is collected, and specifically for those immigrating to the US, not tourists, conference attendees, etc. There are likely a lot of reasons for many people not to want to travel to the US, but this would probably be low on the list.