In October, in response to a question from a field agent, the IRS issued this ruling, saying paper companies would be able to claim an even more lucrative $1.01 per gallon tax credit designed to encourage production of biofuels out of materials people don’t eat, instead of corn – the price of which has been driven up by biofuel-related demand.

Tax experts dubbed it"Son of Black Liquor.”

Then the House of Representatives charged in, seemingly to the rescue. The original House bill included language banning (in a roundabout way) the application of the tax credit to Black Liquor, appearing to save taxpayers about $25 billion. Putting the language in the health care bill offset some of the increased costs, making the health care package technically $25 billion cheaper.

Enter the Senate, stage center. The chamber’s cheaper proposal did not require a $25 billion spending offset to make it look affordable, and besides, some powerful Senators had other plans for the on-paper savings. The Senate left out the biofuel language, and when the Senate bill emerged as the vehicle for health care reform via reconciliation, it appeared Son of Black Liquor had died on the Senate floor.

But Son of Black Liquor was back and standing right behind American taxpayers!

It turns out, however, the House may be the actual villains, because paper companies have repeatedly said they don’t believe they can get EPA clearance for the somewhat different Black Liquor production process that would be required to qualify for the Black Liquor II tax credit. Plain English subtitle: Closing a tax loophole no one was planning to use doesn’t actually save the government any money.

So, who, if anyone, can we blame? In this piece for WNYC’s The Takeaway, Todd Zwillich finds that many members of Congress didn’t actually know Black Liquor was back. (Also: if you listen all the way through, you will be rewarded with Sen. Charles Grassley (R-Iowa) explaining why the accounting makes sense.)