Scientists in Canada were working at an experimental research farm, testing crops like corn and barley. But packs of Canada 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: 12:59 p.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.

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.