According to a blog post written on the list by policy expert Jessica Vaughan, of the Center for Immigration Studies, unlike illegals slipping over the border, many of those on the wait list have been there for up to 13 years or more as they go through the proper process to enter the country.
Unlike with illegals, the government regulates who can come into the country legally.
"The waiting lists are needed because of annual limits on the number of immigrants that can be admitted in certain family and employment categories, and because of caps on the number who can come from each country," she wrote.
The issue of letting more legal immigrants in is a key one for Washington as it grapples with what to do about the 12 million illegals already here.
"The existence of this massive waiting list of eligible applicants for family immigrant visas and green cards raises important questions for policymakers," wrote Vaughan.
http://www.washingtonexaminer.com/waiting-list-for-legal-immigrants-surges-to-4.4-million/article/2563279