diff --git a/WeeklyMeeting.md b/WeeklyMeeting.md
index dd1533c..ba85f7c 100644
--- a/WeeklyMeeting.md
+++ b/WeeklyMeeting.md
@@ -14,7 +14,7 @@ There is a weekly conference call using [Google Hangout](https://www.google.com/
 |---||
 | How |See Agenda below|
 |---||
-(*) Z (Zulu) time refers to UTC; [check where you are](http://www.timeanddate.com/time/map/) or see [the countdown](http://www.timeanddate.com/countdown/generic?iso=20130418T1600&p0=1440&msg=Tahoe-LAFS+weekly+meeting+countdown).
+(*) Z (Zulu) time refers to UTC; [check where you are](http://www.timeanddate.com/time/map/) or see [the countdown](http://www.timeanddate.com/countdown/generic?iso=20130425T1530&p0=1440&msg=Tahoe-LAFS+weekly+meeting+countdown).
 
 ## Etiquette
 
@@ -23,21 +23,17 @@ There is a weekly conference call using [Google Hangout](https://www.google.com/
 
 ## Agenda
 
-URL: <https://plus.google.com/hangouts/_/a6eb62c67fe10e1f7633dd5bd7a1e02fa8e2bf37?authuser=0&hl=en>
+URL: TBA
 
-Upcoming: 2013-04-18
+Upcoming: 2013-04-25
 
 Agenda:
-* Andrew Miller: "type-directed security definitions for generic authenticated data structures"
+* Could Amiller's generalized authenticated data structures be useful for Tahoe-LAFS?
+* 1.10
+* share placement for 1.11
 * also: welcome to any prospective GSoC students who show up
 
-To prepare for this meeting:
-
-* ??? read some papers about "authenticated data structures" ?
-
-This will be a *"TESLA COILS AND CORPSES"* meeting — it is about science, big new features, writing papers about our work, etc.
-
-If you're more into engineering, debugging, documentation, making stable releases, etc. then stay tuned for a future meeting about *"NUTS AND BOLTS"*.
+This will be a *"TESLA COILS AND CORPSES AND NUTS AND BOLTS"* meeting — it is about science, big new features, writing papers about our work, engineering, debugging, documentation, making stable releases, etc.
 
 <!---
 This meeting will have both a *"NUTS AND BOLTS"* segment — about engineering, debugging, documentation, making stable releases, etc. (Tahoe-LAFS v1.10), and a *"TESLA COILS AND CORPSES"* segment — about science, big new features, writing papers about our work, etc. (Message-Locked Encryption).
@@ -55,15 +51,17 @@ This will be a *"TESLA COILS AND CORPSES"* meeting — it is about science, big
 If you're more into engineering, debugging, documentation, making stable releases, etc. then stay tuned for a future meeting about *"NUTS AND BOLTS"*.
 -->
 
-
 ## Proposed Future Topics
 
 * **Rainhill design review** which David-Sarah will distribute; call for outside crypto expert reviewers *("TESLA COILS AND CORPSES")*
 
-
-
 ## Notes / Archives
 
+### 2013-04-18
+
+* *("TESLA COILS AND CORPSES")*: Andrew Miller: "type-directed security definitions for generic authenticated data structures"
+
+[//pipermail/tahoe-dev/2013-April/008192.html notes]
 
 ### 2012-04-11