About a month ago, my colleague Cameron penned an article about the Mortgage Interest Deduction - namely, whether it is a good idea or not. For an itemizing taxpayer in the 25% bracket, he pointed out, "The bank receives 4.0% interest, the homeowner pays 3.0% and the taxpayer is left footing the 1.0% difference." Right - and the bank ends up pocketing the subsidy.