There is a Public Radio (US) International radio feature on art on the
MX-US border:
Calexico, California and Mexicali, Mexico are two desert towns, yards
away from each other along the US-Mexico border. When the US Government
erected a 14-foot-high, 2 mile-long steel fence along their border,
some local residents tried to bring the two towns back together.
Produced by Polly Sveda.
The website:
http://www.wnyc.org/studio360/show.html
Have a listen!
Doug