-The David Petraeus Affair
Happier times: David Petraeus, with his wife Holly, gives a thumbs up during an Armed Forces Farewell Tribute and Retirement Ceremony on Aug. 31, 2011, in Ft. Myer, Virginia.

Should Obama rehire David Petraeus?

It may well be that the president's best nominee to be America's next CIA director is a chastened Petraeus

Amazon used to have the market cornered on the instant gratification cherished by online shoppers, but now Walmart's competing head-to-head, at least in the holiday season.

Is Walmart's same-day delivery service a threat to Amazon?

The country's largest brick-and-mortar retailer is trying to beat Amazon at its own game

-The Twilight Phenomenon
Kristen Stewart as Marylou in "On the Road": Several of the "Twilight" actress' upcoming roles are a far cry from the mopey, vampire-loving Bella Swan.

Life after Twilight: Can Kristen Stewart be taken seriously as an actress?

The tween idol is trading in her trademark role as a chaste vampire girlfriend for a racy romp in Jack Kerouac's On the Road. Does she pull it off?

-War in Libya
David Petraeus' testimony on the deadly Sept. 11 attacks in Benghazi might put to rest rumors that his affair was revealed to keep him from telling Congress what he knows about the siege.

How important will David Petraeus' Benghazi testimony be?

Days after stepping down as CIA director, Petraeus agrees to tell Congress what he knows about the deadly attack on U.S. diplomats in Libya

-Energy Crisis
Under Team Obama's ambitious new fuel-efficiency standards, car owners would save some $8,000 in gas costs over the lifetime of a vehicle purchased in 2025.

Obama's 54-mile-per-gallon fuel standards: Extreme?

Environmentalists are hailing new auto rules as a key step in reducing greenhouse gas emissions — but Mitt Romney says the regulations go way too far

-Sesame Street
Though a previous movie adaptation flopped in 1999, Sesame Street's Big Bird, Cookie Monster, and Elmo are reportedly heading to the big screen again.

Could a Sesame Street movie match The Muppets' success?

On the heels of Kermit's big-screen triumph, Elmo and Co. announce their own plan to capitalize on nostalgia

-Missouri Senate Race
Todd Akin during a Sept. 21 debate in the Missouri Senate race: Akin has come under fire for saying that his opponent, Claire McCaskill (D), was not "ladylike" during the debate.

Todd Akin says Claire McCaskill isn't 'ladylike': Another damaging gaffe?

A month after inviting scorn by suggesting that women don't get pregnant from "legitimate rape," Missouri's Republican Senate candidate is in hot water again

-Natural Disasters
The ancient Italian town of L'Aquila was devastated after a 6.3-magnitude earthquake killed 309 people in April 2009, and now, scientists are on trial for failing to warn the public in advance.

Should scientists be held responsible for earthquake deaths?

In Italy, six scientists are being tried for manslaughter after failing to predict a 2009 earthquake that killed 309 people

-Dow Ups and Downs
Traders work below the Dow Jones Industrial Average ticker at the New York Stock Exchange July 13: Experts say it's time for Apple to join the venerable index.

Should Apple join the Dow?

The tech giant is conspicuously absent from the world's most widely cited stock index, and some say it's time for Apple to take its rightful place at the top

Starbucks' Verismo 580 Brewer sells for $199, and ships with a box a Latte Pods.

Starbucks' new one-cup coffee machine: Will customers buy it?

The ubiquitous coffee chain hopes to expand into your kitchen, offering a new home brewer that can re-create the company's signature lattes and espressos

-Paul Ryan
Vice President Joe Biden will face off against Rep. Paul Ryan in the vice-presidential debate on Oct. 11.

Joe Biden vs. Paul Ryan: The most important VP debate ever?

Mitt Romney's big win over President Obama last week has really raised the stakes for Thursday's showdown between their running mates

-The Pakistan Dilemma
Protesters in Islamabad condemn the attack on 14-year-old Malala Yousafzai, who was shot by the Taliban earlier this month.

Malala Yousafzai: Will her shooting end Islamic extremism in Pakistan?

Pakistanis are united in condemning a brazen attack on a 14-year-old girl, but it's an open question whether this anger will translate into real change

-School Bullying
Nadia Ilse's protruding ears have been the focus of bullies' taunts since the first grade, but a non-profit organization pinned back the 14-year-old's ears for free.

Should bullying victims get free plastic surgery?

A nonprofit organization gives a bullied teen free plastic surgery, but is going under the knife the right way to address the taunting?

-The Anti-Islam-Film Riots
The president should simply ignore the "awful YouTube film," says Marc Lynch at Foreign Policy.

Should Obama trash-talk Innocence of Muslims at the U.N.?

The White House says Obama will "reject the views in this video" when he speaks to world leaders this week, instead of just outright ignoring the YouTube film

-Nature Gone Awry
A night surfer is seen against glow-in-the-dark waves caused by bioluminescent phytoplankton in the Pacific Ocean off the coast of San Diego.

San Diego's 'dazzling' glow-in-the-dark waves

California's beaches are gleaming like a "beautiful hallucination" — and surfers are stoked. What's behind this nocturnal lightshow? 

-Stem Cells
Stem cell research stops cold

Stem cell research stops cold

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