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.

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We are also following a subtler story of economic devastation, even with all the news about unemployment in Europe, this next number is hard to absorb. In Italy, among younger people, the jobless rate us close to 40 percent. The government is focused on the middle-aged and the elderly leaving little room it seems for their kids

Here's NPR's Sylvia Poggioli.

(SOUNDBITE OF SCREAMING AND SHOOTING)

(We're following the news from Oklahoma, where a tornado devastated the Oklahoma City suburb of Moore on Monday. Most recent update: 8:40 p.m. ET.)

A day after a monster EF-5 tornado pummeled Moore, Okla., the focus turned to the victims.

NPR's Wade Goodwyn spent the day in the city talking to survivors. Christie Parrish decided to leave her home for her sister's shelter.

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Let's turn to another story for now: The acting head of the IRS has resigned, but is still facing questions about the agency. Lawmakers continue their probe into the federal tax agency targeting Tea Party groups seeking tax exemption.

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Yahoo's purchase of the blogging site Tumblr sent shockwaves through the Tumblrverse. Is that actually a word now?

WNYC's Ilya Marritz reports that the site's users want to keep Tumblr out of the mainstream.

There is word of another controversial leak investigation by the Department of Justice. The target is Fox News reporter James Rosen, who was monitored by the department after breaking a story about North Korea's nuclear weapons program in 2009.

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It's MORNING EDITION, from NPR News. I'm Steve Inskeep.

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And I'm David Greene. Good morning.

If you grew up in the middle of the country, you grew up around tornadoes. You hear the lore of great storms past. You learned very young how to take shelter. When a siren wails, you know just what to do. Yet, even in Moore, a suburb of Oklahoma City, people could not be entirely prepared for the devastation they faced yesterday.

Giant technology firm Apple is paying billions of dollars less than it should in U.S. taxes each year, according to a report by the Senate Permanent Subcommittee on Investigations. In a hearing Tuesday in Washington, D.C., Apple CEO Tim Cook will defend the company.

The subcommittee's report says Apple avoids the tax payments mainly by shifting profits to three subsidiary companies in Ireland. The investigation found Apple is taking advantage of technicalities in U.S. and Irish tax laws to avoid paying any tax on a huge portion of its profits.

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JPMorgan Chase holds its annual shareholder meeting today in Tampa, Florida, and the shareholders will vote on a key measure: a proposal to strip the CEO, Jamie Dimon, of his other title, chairman of the board. A growing number of companies have split the CEO and chairman roles.

Shareholder activists and corporate governance experts say having a balance of power at the top helps to reduce risk. The bank and its supporters disagree. NPR's Yuki Noguchi reports.