Certainly, yes, it is an additional cost that government would bear.
Also, I'll speak very briefly on Michael's comments on rent supplements, which are different from housing allowances. Many of the problems with rent supplements, because they are agreements with specific landlords, are taken away by going with portable housing allowances. Many studies indicate that housing allowances cost significantly less over the long term, and all of them show they cost much less over the short term.
In fact, CMHC recently came out with a study showing that there aren't inflationary effects. For instance, Quebec has a good experience with housing allowances. If properly designed, they do not have inflationary effects, and I do draw the members' attention to the fact that I did include some comments on this in my material.
Again, that's just one of the additional costs where there is a role for government, I would suggest, in taking into account that the guarantees, which in essence this would be doing, would be bearing the cost. But it is a factor that absolutely needs to be considered.