Begin section on non-copyright issues, focusing first on patents.

gpl-lgpl.tex

@@ -455,6 +455,34 @@ concept behind copyleft, but to actually make it work in the real world, a
 true implementation in legal text must exist. The GPL is the primary
 implementation of copyleft in copyright licensing language.
 
+\subsection{Software and Non-Copyright Legal Regimes}
+\label{software-and-non-copyright}
+
+The use, modification and distribution of software, like many endeavors,
+simultaneously interacts with multiple different legal regimes.  As was noted
+early via footnotes, copyright is merely the \textit{most common way} to
+restrict users' rights to copy, share, modify and/or redistribute software.
+However, proprietary software licenses typically use every mechanism
+available to subjugate users.  For example:
+
+\begin{itemize}
+
+\item Unfortunately, despite much effort by many in the software freedom
+  community to end patents that read on software (i.e., patents on
+  computational ideas), they still ultimately exist.  As such, a software
+  program might otherwise be seemly unrestricted, but a patent might read on
+  the software and ruin everything for its users.\footnote{See
+  \S\S~\ref{gpl-implied-patent-grant},~\ref{GPLs7},~\ref{GPLv3s11} for more
+  discussion on how the patent system interacts with copyleft, and read
+  Richard M.~Stallman's essay,
+  \href{http://www.wired.com/opinion/2012/11/richard-stallman-software-patents/}{\textit{Let’s
+      Limit the Effect of Software Patents, Since We Can’t Eliminate Them}}
+  for more information on the problems these patents present to society.}
+
+\item
+
+
+
 \subsection{Non-USA Copyright Regimes}
 \label{non-usa-copyright}
 
@@ -1463,6 +1491,7 @@ only rarely a better option than complying via \S 3(a).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \chapter{GPL's Implied Patent Grant}
+\label{gpl-implied-patent-grant}
 
 We digress again briefly from our section-by-section consideration of GPLv2
 to consider the interaction between the terms of GPL and patent law. The
@@ -1859,7 +1888,7 @@ So end the terms and conditions of the GNU General Public License.
 \section{GPLv3 \S 10: Explicit Downstream License}
 
 \section{GPLv3 \S 11: Explicit Patent Licensing}
-
+\label{GPLv3s11}
 \section{GPLv3 \S 12: Familiar as GPLv2 \S 7}
 
 \section{GPLv3 \S 13: The Great Affero Compromise}