In the interview he said that
on the Mexican side of the wall
there are “mariachi bands, graffiti,
ice cream vendors, paintings,
dancing, laughter.” On the U.S.
side of the wall — “steel, trucks,
dogs, helicopters, guns.” The
U.S. side is what East Berlin
was when Michael Jackson did
a concert on the west side
of that wall. And then the
poet asked, “Who is free
and who is in prison?”

*paraphrase of conversation
between Luis Alberto Urrea
and Krista Tippet,  On Being