diff --git a/uva/daily-announcements.html b/uva/daily-announcements.html
index e82086d..be64654 100644
--- a/uva/daily-announcements.html
+++ b/uva/daily-announcements.html
@@ -27,8 +27,8 @@
   <![endif]-->
     <style>
 .reveal li {
-font-size:80%;
-line-height:105%;
+font-size:75%;
+line-height:110%;
 }
 img {
   padding: 10px;
@@ -70,6 +70,39 @@ <h4 class="xkcd"></h4>
 
 <!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
 
+<section>
+
+  <section>
+<h2 class='xkcd'>Trolley Problem</h2><img src="https://imgs.xkcd.com/comics/trolley_problem.png" title="For $5 I promise not to orchestrate this situation, and for $25 I promise not to take further advantage of this ability to create incentives." alt="Trolley Problem" srcset="https://imgs.xkcd.com/comics/trolley_problem_2x.png 2x" style="image-orientation:none" class='stretch'><p class='center'><a href='http://xkcd.com/1455/'>xkcd # 1455</a></p>
+</section>
+
+  <section data-markdown>
+## Day 4: Thu, May 23rd
+- Office hours are weekdays from 9:30-10:25 in Rice 402
+- Schedule
+  - Due yesterday: [HW 1: Rational Paranoia](../hws/hw-paranoia-tabbed.html): how did it go?
+    - I hope to have it graded by the start of next week
+  - Due today, by the start of class: read the [ACM Code of Ethics](https://www.acm.org/code-of-ethics), [Reflections on Trusting Trust](https://dl.acm.org/citation.cfm?id=358210), and the [Morris Worm Wikipedia page](https://en.wikipedia.org/wiki/Morris_worm)
+    - [Reflections on Trusting Trust](https://dl.acm.org/citation.cfm?id=358210) is also in the Canvas Files tool
+  - Due tomorrow, Friday, May 24th, by midnight: [HW 2: Ethics](../hws/hw-ethics-tabbed.html)
+  - No class this Monday, May 27th (Memorial Day)
+  - Due next Tuesday, May 28th: [HW 3: RSA](../hws/hw-rsa-tabbed.html)
+    - If you want to do it in a language other than Python, let's chat first
+  - Due next Thursday, May 30th: watch a John Oliver episode video (about 25 min)
+  - Next Friday, May 31st: midterm
+  - Due next Saturday, Jun 1st: HW 4: Fuzzing
+- All submission is through Gradescope
+  - The assignments should automatically open 72 hours before they are due
+- Everybody has to sign the Ethics Honor Pledge
+  - I emailed those who have not yet signed it
+- Lecture progress can be seen on the [repo's UVA page](http://aaronbloomfield.github.io/ics/uva/)
+  - Today we will finish [ethics](../slides/ethics.html#/) (starting on 7.12) and start on [encryption](../slides/encryption.html#/)
+  </section>
+
+</section>
+
+<!-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -->
+
 <section>
 
   <section>
@@ -77,7 +110,7 @@ <h2 class='xkcd'>Security Advice</h2><img src="https://imgs.xkcd.com/comics/secu
 </section>
 
   <section data-markdown>
-## Lecture 3: Wed, May 22nd
+## Day 3: Wed, May 22nd
 - Office hours are weekdays from 9:30-10:25 in Rice 402
 - Schedule
   - Due Wednesday, May 22th (today) by midnight: [HW 1: Rational Paranoia](../hws/hw-paranoia-tabbed.html)
@@ -104,7 +137,7 @@ <h2 class='xkcd'>Security Question</h2><img class='stretch' src="https://imgs.xk
 </section>
 
   <section data-markdown>
-## Lecture 2: Tuesday, May 21st
+## Day 2: Tuesday, May 21st
 - Office hours are weekdays from 9:30-10:25 in Rice 402
   - More will be made available as needed
 - Schedule
diff --git a/uva/index.html b/uva/index.html
index 34236d0..442c10e 100644
--- a/uva/index.html
+++ b/uva/index.html
@@ -109,7 +109,7 @@ <h2 id="lecture-progress">Lecture progress</h2>
 <ol type="1">
 <li>Mon, May 20: finished course introduction; security mindset to 6.13</li>
 <li>Tue, May 21: finished security mindset; finished terminology; policy to 4.19</li>
-<li>Wed, May 22:</li>
+<li>Wed, May 22: finished policy; ethics to 7.12</li>
 <li>Thu, May 23:</li>
 <li>Fri, May 24:</li>
 <li>Tue, May 28:</li>
diff --git a/uva/index.md b/uva/index.md
index c28818e..2fe1aa7 100644
--- a/uva/index.md
+++ b/uva/index.md
@@ -112,7 +112,7 @@ Actual lecture progress:
 
 1. Mon, May 20: finished course introduction; security mindset to 6.13
 2. Tue, May 21: finished security mindset; finished terminology; policy to 4.19
-3. Wed, May 22: 
+3. Wed, May 22: finished policy; ethics to 7.12
 4. Thu, May 23: 
 5. Fri, May 24: 
 6. Tue, May 28: