I really don't... There have been very extensive qualification processes for a long time for anyone looking to enter the US with any one of the available visas. This here is thought police.

I don't have Facebook so I understand if you don't either but if you did have a Facebook and you made an event on Facebook and someone said they were going to attend your event and you didn't know them, you wouldn't click on their profile? You wouldn't want to know who that person is coming to your house?