diff --git a/TODO b/TODO
index b41d1799015084752a1d8aa8e4402a861ba3dca1..a15acc69a57fc75d2c64e38edb02ac9b6a9ce47b 100644
--- a/TODO
+++ b/TODO
@@ -9,3 +9,7 @@ More feedback modes, in order of decreasing priority:  CBC-MAC, OFB,
 Counter, and CFB. Suggested by Rafael 'Dido' Sevilla. References:
 
   http://csrc.nist.gov/encryption/modes/Recommendation/Modes01.pdf
+
+Add a randomness pool. Perhaps YARROW?
+
+  http://www.counterpane.com/yarrow.html