I think part of the problem is that the issue is never brought up in a political context. When most non-hip-hop heads (i.e. most of the country) think of sampling they think of Puff Daddy rather than DJ Shadow. A lot of people think "sampling" means simply rapping over the instrumental to an old song. They don't understand that it can be art in and of itself.

-Ryan

"Police don't sweep to get the dust out
They want your name in the system,
I need to mention the death penalty is
legal lynchin
People listen, they got teenagers up in
the line up
To fill the new facility they built,
they need the crime up
Please, the war on drugs is really war
on the youth
War on the people
War on the truth
The violent crimes rise,
the silent dies as sirens cry through
the night
People fight for what's left and not
what's right"

-Talib Kweli