Also here is some more information: http://www.cnn.com/2017/01/28/us/syrian-...ravel-ban/
Now I'm unfamiliar with the F-4 visa, but it looks like there are steps between "approved" and actually moving to the US. So...they didn't actually sit on their behinds at all, they followed the proper procedures in place for immigrants.
Quote:In late 2015 they were finally approved to enter the United States on an F-4 visa for brothers and sisters of US citizens.
The relatives finalized their paperwork, immigration interviews and medical examinations during a 10-day trip to Jordan in late December last year.
The Assalis have helped bring family members to the United States before. In 2013, they were able to bring in one relative, and last month they were able to bring the brothers' sister and her daughter.
Now I'm unfamiliar with the F-4 visa, but it looks like there are steps between "approved" and actually moving to the US. So...they didn't actually sit on their behinds at all, they followed the proper procedures in place for immigrants.