There are some significant challenges. The north is quite vast; it's far away and it has a very severe climate. Because of its remoteness, size, and difficulties, infrastructure is a persistent challenge in the north--a full range of types of infrastructure.
Capacity, the population of the three northern territories--when I'm speaking, I'm speaking about the three northern territories primarily. There is a very small number of people available in the north, skilled and able to move forward natural resource development. So there are two.
I'm sure there's another one.