Yes, there were at least a couple of questions there. I'll try to be as efficient in my answer as I can.
First of all, with respect to why the government acted at the end of October, the reason was what happened in 2006, and several things happened. As chart A shows, there was a rapid acceleration of conversions to income trusts in the first 10 months of 2006, including the ones that were announced by TELUS and BCE. Secondly, the quantum had gone up dramatically, about $70 billion alone in the first 10 months of 2006. Thirdly, the nature of the income trusts--they were starting to invade active areas of the economy requiring investment and re-investment, the knowledge-based sectors of our economy--was very dangerous for the growth of our economy and our future prosperity. All of those things were new in 2006 and were not present in 2005, and that is why we felt, given that change of circumstances, to act was the best thing for Canadians.
Now, why will the transition period be four years and not 10 years?