Patents on Tax Shelters

I knew the good old Patent Office was granting a lot of outrageous patents lately, but I never knew it was this bad. They are issuing patents for tax shelters, bits of legal fakery used to avoid paying income tax. Finally a few congressmen got up the backbone to attempt to outlaw this scam on the part of the patent office. They issued this press release just before Thanksgiving.
About time. While they are at it how about outlawing "business methods" patents, and patents on software? And requiring a working model before granting a patent. And outlawing patents on genes. And outlawing patents on obvious ideas and prior art?