Walled world: Lessons from Europe's border barriers | CBC News
The State of the Southern Border – Third Way
As migration is rising, so are border barriers – DW – 08/13/2021
Border walls obstruct legal trade by one-third, 'divert' illegal trade - The Source - Washington University in St. Louis
Biden's holdup of border wall funding didn't violate law, GAO rules
Border Wall Rising In Arizona, Raises Concerns Among Conservationists, Native Tribes | WBUR
PBS NewsHour | How residents from El Paso feel about border barriers | Season 2019 | PBS
They Built the Wall. Now Some in Texas Fear It May Fall Down. - The New York Times
Biden administration to resume construction of taller border barrier at Friendship Park - The San Diego Union-Tribune
Trump's Border Barrier Hits a Wall - Government Executive
What Trump got right and wrong about his new border barrier
Tribe: Arizona built border barrier against its wishes | AP News
U.S.-Mexico Border Security | Politics and Policy
Tribe supports federal action on Arizona shipping container border barrier
Egypt–Israel barrier - Wikipedia
Building border walls and barriers: What the research says
Border Patrol Makes Its Case For An Expanded 'Border Barrier' : NPR
These photos show private border barriers being built on private land ... with private money - The Washington Post
Trump wants his border barrier to be painted black with spikes. He has other ideas, too. | The Seattle Times
Mapping the Border Wall in Arizona and New Mexico — Wildlands Network
Building a Border Barrier: the U.S. Army Corps of Engineers' Contracting Efforts | U.S. GAO
11 border walls around the world that predate Trump's barrier plans | Mint
What the research says about border walls and barriers
