Though "weeding out" or "filtering" to any real extent clearly isn't all that much of a priority when a large part of the system is a lottery. The green card l

Though "weeding out" or "filtering" to any real extent clearly isn't all that much of a priority when a large part of the system is a lottery. The green card lottery (Diversity Immigrant Visa) makes up less than 5% of the total green cards issued in the US. I'd hardly call that a large part of the system.