Walls don't work? Very foolish statement easily proven incorrect. Israel being the most recent example of a nation using a wall to protect its' borders.
It is very disheartening to see the GOPe "no can do" attitude all the time around here.
Oh yes..Israel's wall. What a resounding success that has been.
http://www.vtjp.org/background/Separation_Wall_Report.htm And thats just one of the more neutral commentaries...