Bleach speech on its individual page too.
Have speeches CSS on all pages.
Have list of recent sections on front page of instance.
Have two permalinks, individual and in context, for each speech.
Add coloured left border to speeches/speakers.

The colour is generated from a hash of the person or speaker ID.
Add placeholder speaker images.
Only show speech's immediate section.

Need to think about how to optimise getting all the ancestors for a set
of speeches, seems to be a bit slow doing it once per speech.