NPR News

Parents who want to keep their teenagers safe while they're driving might want to tuck them in bed early the night before.

Drowsiness is a well-known risk for adult drivers, but teenage drivers are more impaired than adults when facing an equivalent lack of sleep, an Australian study finds.

Residents of Moore, Okla., are searching for survivors and coming to terms with a massive tornado that left dozens of people dead and injured more than 200 others Monday afternoon. As aid and recovery groups search for victims and try to reunite loved ones, they're also seeking donations and coordinating housing:

Rescuers are still combing through the rubble Tuesday morning in Moore, a suburb of Oklahoma City. More is the hometown of Republican Rep. Tom Cole. He encourages everyone to remember that people in the area will need long-term help.

Scientists in Canada were working at an experimental research farm, testing crops like corn and barley. But packs of Canadian geese had been swooping in and destroying the crops. Two border collies were hired to chase away the geese.

The late Indian leader Mohandis Gandhi, who became known as Mahatma, or venerated one, had an appendectomy decades ago. Afterward, doctors took samples of his blood. Two microscope slides bearing that blood are being auctioned in London.

The daily lowdown on books, publishing, and the occasional author behaving badly.

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: 10:10 a.m. ET.)

While the number of deaths and amount of damage caused by a huge tornado that tore through Moore, Okla., on Monday remain high, state officials announced just after 9 a.m. ET Tuesday that fewer people than feared may have lost their lives.

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.

When news of Yahoo's purchase of Tumblr first hit, Tumblr users took their reactions online. The posts were quirky and sharp with plenty of worry about the future.

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.

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.

In Tampa, Fla., Tuesday, JPMorgan Chase holds its annual shareholder meeting. They will vote on a key measure: Whether to strip CEO Jamie Dimon of his title of chairman of the board. A growing number of companies have split the CEO and chairman roles.

Melissa Block talks to Casey Mongold, owner of Casey's Tire and Auto in Moore, Okla., where a tornado caused widespread destruction on Monday.

Melissa Block talks to Jon Hamilton about the science of tornadoes.

NBC News has put together a time-lapse video of the EF-4 tornado that tore through the southern suburbs of Oklahoma City, Okla.

As we told you in the live blog, the National Weather Service says it was at least an EF-4 tornado with winds in excess of 166 mph. The tornado stayed on the ground for 40 minutes and traveled 20 miles.

Although Oklahoma is a state where tornadoes are a fact of life, few days stand out like May 3, 1999.

It's another bad day for the Justice Department.

A federal judge in Louisiana has thrown out the central criminal charge against a former BP executive because prosecutors failed to prove he knew about a pending congressional investigation into oil flowing into the Gulf of Mexico three years ago. U.S. District Judge Kurt Engelhardt also ruled that a Democratic House member who inquired about the oil flow rate was acting as head of a subcommittee, not a full congressional committee, as required under the federal Obstruction of Justice statute.

Ray Manzarek, the keyboardist and a founding member of The Doors, died Monday in Germany. He was 74.

A statement from publicist Heidi Ellen Robinson-Fitzgerald said Manzarek died in Rosenheim, Germany, after a long battle with bile duct cancer.

Manzarek and Jim Morrison founded the iconic band after meeting in California. The Doors went on to become one of the most successful rock 'n' roll acts of the 1960s — and continues to have an impact decades after Morrison's death in 1971.

Melissa Block talks to Joe Wertz of the public radio initiative State Impact about the tornado that hit the Oklahoma City area on Monday.

(This post was last updated at 11:45 p.m. ET.)

A massive tornado ripped through the southern suburbs of Oklahoma City, Monday afternoon, killing at least 51 people, according to the state medical examiner's office.

The death toll was expected to rise.

Helicopter images showed large tracts of Moore, Okla., completely leveled by what the National Weather Service says was at least an EF-4 tornado with winds in excess of 166 mph. The tornado stayed on the ground for 40 minutes and traveled 20 miles.