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According to new research, 3.7 million Americans who live at elevations close to high tide could face more frequent flooding because of the sea rise caused by global warming.

The New York Times reports:

The cacophony of hoots being directed at Mitt Romney Wednesday for his poor performances in Alabama and Mississippi primaries is somewhat curious, especially since it was the conventional wisdom as recently as last week that the Deep South was likely to be very tough going for him.

After U.S. troops inadvertently burned Qurans in Afghanistan last month, Afghans staged nationwide riots that left 40 dead and hundreds injured in unrest that lasted days.

In the days since 16 Afghan civilians were shot dead on Sunday, apparently by a lone U.S. soldier, the Afghan reaction has been relatively restrained so far.

Why such different responses? It can seem especially confounding to Americans, who consider the shooting a far graver offense than the Quran burnings.

Listen to the conversations around you — colleagues at the office, customers in the coffeehouse line, those who serve you, those you serve, the people you meet each day. "Give me a tall latte." "Hand me that hammer." "Have a good one."

Notice anything missing? The traditional magic words "please" and "thank you" that many people learn as children appear to be disappearing.

The Pentagon says an Afghan drove a stolen truck onto the airfield of a British base in southern Afghanistan at high speeds until it crashed into a ditch and exploded into flames.

The incident at Camp Bastion happened around the same time that U.S. Secretary of Defense Leon Panetta landed in the country.

"At no point was the Secretary or anyone on the aircraft in any danger from this incident," the International Security Assistance Force said in a statement.

Cooling a person's hands while exercising can make for a better workout, especially for people who hate to exercise because it makes them all hot and sweaty.

This might help the many, many people who have a hard time keeping up with exercise because it's just plain uncomfortable.

Researchers tested the idea with obese women in their 30s and 40s who worked out on a treadmill. The women whose palms were cooled with a device that circulated ice water were able to exercise longer than the women whose palms were exposed to room temperature water.

There's a new record in the Iditarod: A 25 year old has become the youngest musher to win the approximately thousand-mile trans-Alaskan sled dog race.

Dallas Seavey slid into Nome, Alaska, at 7:29 p.m. yesterday with nine dogs, finishing the race in nine days, four hours, 29 minutes and 26 seconds.

"We went into this race with a dog team that I knew had the ability to win the Iditarod," Seavey said in a post-race press conference in Nome. "We spent most of the race building a monster – a dog team that couldn't be stopped."

Greg Smith is a fairly ordinary name — but it's now one that's all the talk of Wall Street after he quit his position at Goldman Sachs today in one of the most amazingly public ways:

With an essay in The New York Times that accuses Goldman Sachs of having a money-is-everything culture that is "toxic and destructive."

One year into the Syrian uprising, with the world community reluctant to intervene, one international group has taken a direct and risky role in Syria — even taking a part in the high-profile evacuation of Western journalists from the besieged city of Homs.

Avaaz, a global online pressure group based in New York, has given crucial support to the uprising and the Syrian activist networks that aim to topple the regime of President Bashar Assad.

When it comes to reality TV — and competitive cooking shows in particular — there are many reliable ways to create drama: menacing judges, preternaturally ticking clocks, the threat of elimination, and, of course, clever editing.

President Obama and British Prime Minister David Cameron are due to hold a news conference at the White House just after noon ET.

We'll live blog as they speak, so check back as the time approaches and hit your "refresh" button every once in a while after they get started.

After two years of going with the wrong team to win it all, President Obama is counting on North Carolina — the team he correctly picked to win the 2009 NCAA men's basketball championship — to end up No. 1 this year.

As he has each year since taking office, the president spent time with ESPN going over his bracket for the tournament.

Some years ago I was visiting Disneyland and had a culture-clash encounter there with my one of fellow Americans. I was standing with my daughter on the miles-long meandering line for "It's a Small World After All" and I fell into a conversation with another mom; when this woman found out I was a native New Yorker, she treated me to her verdict on the city: "It's so dirty there!"

I don't want to complain about Frozen Planet, however, until I dish out a little praise.

I was in my local independent bookstore last week, enjoying the endangered pleasure of wandering around and snuffling through interesting-looking books when I overheard two women talking in front of the new releases section. "I need a new British novelist," one of them said. Ladies, I should have spoken up, but the moment passed and, besides, it was too awkward to explain that the one of the best British novelists writing today was born in New Jersey.

After Oregonian editorial page editor Bob Caldwell died Saturday, the report from the newspaper on Sunday said he had suffered a heart attack.

That does appear to be the 63-year-old journalist's cause of death. But the circumstances surrounding his last moments were considerably more complicated.

Men who eat a lot of fatty foods have lower quality sperm than men who avoid them, a new study found.

Saturated fat, the stuff in meat and dairy foods, was associated with lower sperm counts. The men eating the most saturated fat had 35 percent fewer sperm than men eating the least.

On the bright side, the men who ate more omega-3 fats — the kind found in fish and some plants — had slightly more sperm that were correctly formed than their brethren who ate less.

Iran said Tuesday that it was unwilling to allow international nuclear inspectors to have complete access to a restricted military complex, called Parchin, which is near the capital Tehran. There are concerns that the complex may contain a facility designed to test explosives meant to trigger a nuclear chain reaction.

Rick Santorum won two Southern state GOP presidential primaries Tuesday, embarassing Mitt Romney who had predicted he'd take one.

Second-place finisher Newt Gingrich vowed to fight on to Tampa, tag teaming Romney along with Santorum. The "three-way dynamic," as he put it, is a winner for Gingrich and, perhaps, his dream of deal-making at the convention, and for Romney, too, whose Southern result could have been much worse if he'd been posting up against Santorum alone.

Good morning.

Our early headlines:

-- 'Tragic Day For All Of Belgium': 22 Children Killed In Bus Crash.

-- In Afghanistan, Panetta Says Mission Continues.