What are the indicators?

While, by and large, I am convinced by the argument that the presence of Australian troops in Afghanistan is part of (and probably necessary for) the 'war against terrorism'; the question that keeps being asked and seldom (if ever) answered is:when we will know that it is time to withdraw our troops?

Clearly there is a range of indicators that could, and perhaps should, be adopted. Not the least of which is the question of the cost in human life.

Let us also not forget that this cost is on both sides.

I do not pretend that there is any easy answer to this question. I would, however, like some assurance that this question is being grappled with.

I am not always convinced that this is so.