Visa Overstays Far Exceed Illegal Border Crossings in U.S.—and a Wall Won't Change That, Study Says
US Undocumented Population Continued to Fall from 2016 to 2017, and Visa Overstays Significantly Exceeded Illegal Crossings for the Seventh Consecutive Year - The Center for Migration Studies of New York (CMS)
The Real Immigration Crisis: People Overstaying Their Visas - The Atlantic
Homeland Security produces first estimate of foreign visitors to U.S. who overstay deadline to leave | Pew Research Center
Why US citizens overstay with 1 year tourist visa Vietnam and what to do?
Nations targeted by U.S. for high rates of visa overstays account for small number of violators - The Washington Post