
diff -r 036a762b02cf -r 5b943e29b717 hws/hw01.tex
--- a/hws/hw01.tex	Sun Sep 20 22:09:58 2015 +0100
+++ b/hws/hw01.tex	Mon Sep 21 14:23:41 2015 +0100
@@ -5,6 +5,9 @@
 
 \section*{Homework 1}
 
+\HEADER
+
+
 \begin{enumerate}
 \item {\bf (Optional)} If you want to have a look at the code
   presented in the lectures, install \texttt{Node.js} available (for free) from
@@ -47,20 +50,20 @@
 
 \item And another one: Imagine you have at home a broadband
       contract with TalkTalk. You do not like their service
-      and want to switch, say, to Virgin. The procedure
+      and want to switch to Virgin, say. The procedure
       between the Internet providers is that you contact
-      Virgine and set up a new contract and they will
+      Virgin and set up a new contract and they will
       automatically inform TalkTalk to terminate the old
       contract. TalkTalk will then send you a letter to
       confirm that you want to terminate. If they do not hear
-      from you otherwise, they will proceed with terminating
+      from you, they will proceed with terminating
       the contract and will request any outstanding
       cancellation fees. Virgin on the other hand sends you a
       new router and paperwork about the new contract.
       Obviously this way of doing things is meant to make
-      switching for you as convenient as possible. Still can
-      you imagine in which situations this way of switching
-      providers can cause you a lot of headaches to you? For
+      switching as convenient as possible. Still can
+      you imagine situations in which this way of switching
+      providers can cause you a lot of headaches? For
       this consider that TalkTalk needs approximately 14 days
       to reconnect you and might ask for reconnection fees.
       
@@ -72,18 +75,19 @@
       prevented. Hint: Consider the fact that every person
       uses approximately 120l of water every day.
 
-\item And another one: Nowadays everybody is scared at a bomb
-      going off at a big event, say a football game. To
-      mitigate such a threat, you order expensive metal
-      detectors and hire a security team that will staff these
-      detectors at each game. Think whether people are really
-      safer at a football game with metal detectors or not.
-      Hint: People certainly might *\emph{feel}* safer by
-      going through metal detectors, but the question is
-      whether they *\emph{are}* safer. Hint: Consider how
-      people arrive at such an event: within a relative short
-      amount of time, thousands, if not more, spectators will
-      arrive at your football game.
+%\item And another one: Nowadays everybody and their
+%      grandmother seems to be scared about a bomb going off at
+%      a big event, say a football game. To mitigate such a
+%      threat, you order expensive metal detectors and hire a
+%      security team that will staff these detectors at each
+%      game. Think whether people are really safer at a
+%      football game with metal detectors or not. Hint: People
+%      certainly might *\emph{feel}* safer by going through
+%      metal detectors, but the question is whether they
+%      *\emph{are}* safer. Hint: Consider how people arrive at
+%      such an event: within a relative short amount of time,
+%      thousands, if not more, spectators will arrive at your
+%      football game.
 
 %% CYA security - cover-your-ass
 % It's an attitude I've seen before: "Something must 
@@ -91,9 +95,9 @@
 % Never mind if the something makes any sense or not.
     
 \item And another one: Imagine you are researching security
-      products (e.g.~CCTV, alarms etc) on a 
-      helpful website. They ask you for you address details?
-      Think about whether this can be bad for you.
+      products (e.g.~CCTV, alarms etc) on a helpful website.
+      They ask you for you address details? Think about
+      whether this can be bad for you.
 
 
 %\item Imagine there was recently a break in where computer criminals
@@ -107,7 +111,7 @@
   
 \item Even good passwords consisting of 8 characters, can be 
   broken in around 50 days (obviously this time varies a lot and
-  also gets shorterand shorter). Do you think it is good 
+  also gets shorter and shorter). Do you think it is good 
   policy to require users to change their password every 3 
   months (as King's did until recently)? Under which 
   circumstance should users be required to change their 




