diff --git a/src/output.c b/src/output.c
index 470d7b9..94457f0 100644
--- a/src/output.c
+++ b/src/output.c
@@ -3,7 +3,6 @@
  *
  * Outputs an attack.
  * Currently, every attack is printed.
- * TODO move attacks to a buffer, and print _only_ the shortest one.
  */
 
 #include <stdlib.h>
diff --git a/src/todo.txt b/src/todo.txt
index 5cda8f2..76d8a94 100644
--- a/src/todo.txt
+++ b/src/todo.txt
@@ -1,3 +1,4 @@
+- Is the Goal structure really needed?
 - Warshall is taking a third of the time running.
   - Make 'dirty' flag.
   - Make a push-graph structure, where old graphs are simply remembered?