difficult.
People who have studied the issue of intellectual property
-rights@footnote{n the 80s I had not yet realized how confusing it was
+rights@footnote{In the 80s I had not yet realized how confusing it was
to speak of ``the issue'' of ``intellectual property.'' That term is
obviously biased; more subtle is the fact that it lumps together
various disparate laws which raise very different issues. Nowadays I
urge people to reject the term ``intellectual property'' entirely,
lest it lead others to suppose that those laws form one coherent
-issue. The way to be clear is to to discuss patents, copyrights, and
+issue. The way to be clear is to discuss patents, copyrights, and
trademarks separately. See
@uref{http://www.gnu.org/philosophy/not-ipr.xhtml} for more
explanation of how this term spreads confusion and bias.} carefully