We began using this specific screening instrument in 2003 for the first time. We now have almost three years of experience and data using this particular instrument. Before that it was much less structured. There was always an evaluation, but not using the same questionnaire.
For the current mission, since we've moved to Kandahar and undertaken more active patrolling and more contact with the enemy that's been characteristic of this current mission, we do not have any data yet from anybody who has returned from that mission. The vast majority of the battle group that returned in August, who are centred in Edmonton and Shilo, will undergo these assessments after Christmas, so the data collection will run through January and February. After we have a chance to process that information, we'll have a better sense as to what the different stressors and the different nature of this deployment mean compared to the previous deployments in Kabul, or even to some other experiences we've had.
We don't know. You've probably heard lots of people say that because the mission is so active and there've been so many incidents that it must produce more mental health problems. There are some schools of thought on the psychiatric side that that's not necessarily the case, that because they have a mission, because they're pursuing their goals, and because they're out there allowed to engage the enemy, for some people and in some circumstances that might be less stressful than the enforced passivity of the classic UN peacekeeping mission. We just don't know. We're going to collect the data and see.