1. Fighting terrorism vs preserving civil liberties
2. The importance and role of field experts (judges, scientists, etc) compared to the will of the people.
3. Religion and government: To expand on this a little bit more, even though we've supposedly been a secular nation, only recently has the de facto relationship between government and the popular religion been questioned. Clearly those involved with the relationship are unhappy, and I suspect as the secularists become louder, the non-secularists will become VERY unpleasant.