Movements know how to win the street. The harder question is what to ask for once they are standing in it.

Each brief sets out what a movement demanded, what it actually got, and which structural demands would have made the change irreversible.

• Egypt, January 2011 Took a scalp
  The square demanded that Mubarak go. He went in eighteen days. The institution that had held real power since 1952 stayed exactly where it was.