Both the former IRS commissioner who was in charge when the agency singled out some conservative groups for extra scrutiny and the man who replaced him will be appearing at a Senate Finance Committee hearing Tuesday morning.

Douglas Shulman, an appointee of President George W. Bush who left the IRS last November, and acting commissioner Steven Miller (who is losing his job because of the scandal) are due at the 10 a.m. ET hearing.

(We're following the news from Oklahoma, where a tornado devastated the Oklahoma City suburb of Moore on Monday. Most recent update: 6:45 a.m. ET.)

As Tuesday dawned, the official death toll from the monster tornado that roared through Moore, Okla., on Monday stood at 51.

But Amy Elliott, a spokeswoman for the Oklahoma state medical examiner's office, was warning that officials believe at least another 40 people had been killed. Some of those are thought to be children in one of the schools that was destroyed by the powerful storm.

The measure includes farm and food subsidies totaling almost $100 billion. Lawmakers have trimmed more than $2 billion in annual farm spending. The question, though, is whether to trim more.

A Boeing Dreamliner took off Monday — it was a United Airlines flight from Houston to Chicago. This was the first time the fuel friendly jet was back in U.S. skies in nearly five months. The 787 planes had been grounded since January because of battery problems, which cost United roughly $11 million in revenue.

Steve Inskeep has the Last Word in business.

IRS and Treasury officials can expect a hard time in their appearances on Capitol Hill Tuesday. A key question that so far has not gotten much attention: How did it come to be that social welfare organizations became vehicles for political activity?

In Italy, the youth jobless rate is nudging 40 percent, a record high in post-war history. Demographer Stefano Rosina says the Italian welfare system has always been skewed toward the middle-aged and elderly, leaving Italian youths with no political or trade union representation.