Has SCOTUS Created a Way to Get Around the Estate Tax?

The American Thinker reports:

Sometimes, at a most solemn moment, a most irreverent thought shoots through the mind. When I heard that the US Supreme Court legalized gay marriage, my thought was "I wonder what the estate tax lawyers will make of it?"

How about advising a terminally ill widowed grandma to marry her much-beloved granddaughter at the deathbed? Won't the estate pass to the surviving spouse intact? I'm not a lawyer, but I think it will -- without IRS getting the bite out of it as would happen now.

And it would be very hard to have a sound legal argument against such marriage. Isn't it born out of love? Absolutely. But doesn't it go against the prohibition of marriage with a blood relative? But this prohibition is rooted merely in the very same authority that also prohibits the same-sex union, and hence could survive juducial review if litigation results.

An interesting point.