All Christians should be able to articulate reasons why they believe what they believe - not just for the sake of our spiritually confused friends, but also so that we ourselves will have a deeper and more confident faith.
I think the Resurrection continues to be a pivotal issue, a pivotal question for people. I think a lot of other issues have been raised in interim years, about the nature of truth, of course gender issues, issues involving social matters like abortion and euthanasia and so forth, those swirl about and change from time to time, but I think the fundamental question of whether or not Christianity is true ultimately goes back to the Resurrection.