--- a/hws/hw02.tex	Tue Oct 03 20:10:54 2017 +0100
+++ b/hws/hw02.tex	Tue Oct 03 22:43:03 2017 +0100
@@ -42,7 +42,7 @@
       customer does a sit-up, how far she runs -- or when he
       or she has skipped the gym for a few days. For `good'
       customers there will be a discount in their premiums.
-      Why is this a problem?
+      Why is this way of deciding about a discount problematic?
 
 
 \item Voice voting is the method of casting a vote in the `open air'
@@ -97,6 +97,28 @@
   voting system, which is prevented in traditional elections with
   paper-based ballots?
 
+\item Voter registration can help\ldots\\
+  Check all that apply and give a brief explanation for your
+  decision in each case.
+
+\begin{itemize}
+\item[$\Box$] poll workers count votes faster
+\item[$\Box$] prevent chain voting
+\item[$\Box$] prevent voters from voting multiple times
+\item[$\Box$] prevent ineligible people from voting
+\end{itemize}
+
+\item What are some advantages of requiring voters to provide a photo
+  identification (drivers license, passport) in order to vote?\\
+Check all that apply and give a brief explanation when an answer applies.
+
+  
+\begin{itemize}
+\item[$\Box$] Helps to reduce voter fraud, such as voting under a false name
+\item[$\Box$] Helps to thwart chain voting attacks
+\item[$\Box$] Helps protect ballot secrecy
+\end{itemize}
+
 \item \POSTSCRIPT
 \end{enumerate}