We talked about it yesterday at the Standing Senate Committee on National Finance. I'll say it again today: changing a system that has been around for 45 years will have unexpected, unpredictable and probably negative consequences.
Of course we must review the tax system. Any system, including the 50-year-old health care system, needs to be reviewed and adapted to modern times. However, you must take the time to check if the stairs are sturdy before you step on them.