How this is happening, the exact trajectory of how much worse these things are (and its potential to worsen) is somewhat terrifying, especially when you consider the cavalier disregard and easy ignorance that this policy represents. I know classmates and colleagues and friends who are discussing, in their groups and communities, how to best help people stranded, whether or not vacations and returns to see ill family…
The Hart-Celler Act abolished the national origins quota system that had structured American immigration policy since the 1920s, replacing it with a preference system that focused on immigrants' skills and family relationships with citizens or residents of the U.S.
http://library.uwb.edu/Static/USimmigration/1965_immigration...
Executive Orders are there to fill in the implementation details that congress leaves out.. they can't override laws entirely.