In Congress, Republicans outnumber Democrats on Twitter 2 to 1, according to a diagram that looks at Tweets from both sides of the aisle.

Perhaps. A Minneapolis experiment offers voluntary busing of minority schoolchildren as a way to deal with segregated schools.

The Slovak Republic, Israel and the Czech Republic score high marks in the annual Adventure Tourism Development Index.

Almost everyone in the world's "bottom billion" has at least one of a dozen or so tropical diseases that mostly ignored by Western medicine and pharmaceutical companies.

John Dougherty, a journalist who helped make John McCain one of the Keating Five, is running a long-shot campaign to replace McCain as U.S. senator. Along the way, both will have to deal with the immigration monster under every Arizona bed.

Using artificial intelligence and the graphics techniques behind "Avatar," a USC institute creates “virtual humans” and interactive immersions that train American soldiers to win hearts and minds in Iraq and Afghanistan.

How the potent hormone of empathy, oxytocin, is shaking up the field of economics.

It's not insufficient schooling or a shortage of scientists. It's a lack of job opportunities. Americans need the reasonable hope that spending their youth preparing to do science will provide a satisfactory career.

International treaties aren't the way to combat cyber sabotage.

Why euro-bashers could turn against the dollar, and how they might be stopped.

When the going gets tough, the tough get going — even if their activity is counterproductive or just for show.

To paraphrase Stalin, one dead body is a fact; a million dead bodies are a point of contention.

For the U.S. to have world-class high-speed trains, the government will have to subsidize them. The investment would be small compared to the billions lavished on highways and airports.

Claiming that our inbred propensity to war can be prevented by aggressively reducing the birth rate is a de facto declaration of war on the world's poor.

Charles Harvey traces the source of widespread arsenic poisoning in Bangladesh, setting the stage for programs that could benefit 20 million people.

University of Washington researcher Julia Parrish founded COASST, a nonprofit that allows hundreds of citizens to serve science by cataloging dead birds on West Coast beaches.

With few resources but the force of his title — U.N. special rapporteur on extrajudicial executions — Philip Alston holds governments accountable for the politically motivated killings they commit, or ignore.

A small sample of the overwhelming and varied response to a story on the labor market for scientists.

Our readers wonder whether the primary blame for warfare rests with one hormone.

Letters to the Editor: From Beethoven to Zappa, new technology hasn't been out of tune with beautiful music.

An extraordinary plan to revive the Dead Sea could ease tensions among Israel, Palestine and Jordan. Or it could create an environmental disaster.

An unprecedented 10-year study's surprising verdict: The real outcome of most lobbying is ... nothing. Until the right party or person comes to power.

How a government team called Operation Mongoose tried to get rid of the invasive northern snakehead by poisoning 400 miles of Arkansas waterways.

With Machu Picchu literally sinking into the ground, Peru looks for authentic, eco-friendly ways to grow its travel sector.

In the "AIDS exceptionalism" debate, emotions run high, and the options are difficult: Shift some AIDS funding to other care, or find billions in new support.

Study says using a cell phone while driving causes communication breakdowns that could cause misunderstandings and hurt relationships.

Paper reveals that players of a popular video game increase their performance when they've had a full night of rest.

Scientists who argue for human-caused climate change published twice as many papers and are cited 64 percent more often than researchers who doubt climate change.

Researchers analyzing episodes of ABC's "Grey's Anatomy" and Fox's "House" determine the hospital dramas are "rife" with incidents that violate professional codes of conduct.

Researchers find that skateboarders will take more risks with their tricks and boast higher testosterone levels when women are present.

Ready for a close-up: The year in award-winning photojournalism presented by the World Press Photo Exhibition.

Social epidemiologist Paula Lantz reveals what actually leads to premature deaths among Americans. Obesity? No. Poverty? Yes.

A new book, "Just Give Money to the Poor," says the poor will spend the cash wisely and boost the economy, too.

A new book, "The Enemy In Our Hands," looks at how America has treated — and mistreated — prisoners of war through history resonates in the age of terror.

State courts should stand firm on equal school funding and make sure legislators and governors show kids the money, a law scholar writes.

Researchers argue the physical location of the polls not only affects how many people vote; it may also influence last-minute decisions regarding which box to mark or lever to pull.

As Pixar launches "Toy Story 3," we look at research the innovative animation studio has inspired.

After monitoring the behavior of soccer hooligans at the 1998 World Cup, researchers determined that violent behavior was more accepted among the English.

Don't spend that World Cup money just yet, South Africa. Statistics show that the World Cup isn't always an economic boon for host countries.

Researchers find a spike in heart problems among European soccer fans during World Cup matches, while other studies show the players on the pitch are suffering fewer injuries.

Amid a rush of political scandals and missteps, we figure that some citizens are more embarrassed for their state than others. We look at the shameful headlines and determine where these states would rank on the citizen embarrassment level.

How textbook changes and talk of secession affect the citizen embarrassment level in Texas.

How battling Obamacare and being highlighted for corruption affect the citizen embarrassment level in Tennessee.

How former Gov. Rod Blagojevich and state corruption in general affect the citizen embarrassment level in Illinois.

How gun laws, Confederate History Month and a statue of Stalin contribute to the citizen embarrassment level in Virginia.

How rampant corruption, a governor's affair with a prostitute and the fall of "America's Cop" affect the citizen embarrassment level in New York.

How immigration laws, a state boycott and a "worst sheriff" honor affect the citizen embarrassment level in Arizona.

How a budget deficit, credit crisis and the Governator affect the citizen embarrassment level in California.

Bamboo houses combat climate change, encourage economic growth and protect the poor from natural disaster. Why aren't there more of them?

A collaboration between UCLA and the Los Angeles school district aims for the kind of bilingual excellence that's common in Europe.