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Global Payments, a third-party processor of credit card payments for Visa, MasterCard and Discover, said late last night that the data breach made public last week may have risked about 1.5 million credit card numbers.

"It's constitutional," President Obama declared this afternoon when asked about the 2010 health care overhaul legislation that was the subject of three days' worth of Supreme Court hearings last week.

He's confident a majority of the justices will agree, Obama added. Many Supreme Court watchers are less certain.

The president make those comments in response to a question that came up during a joint news conference at the White House with Canadian Prime Minister Stephen Harper and Mexican President Felipe Calderon.

More delegates are up for grabs as the GOP primaries move to Wisconsin, Maryland and Washington D.C. Politicos are closely watching the Badger State, where Rick Santorum is hoping for a boost from rural voters, and Mitt Romney is looking for a decisive victory. Guest host Jacki Lyden speaks with analysts Mary Kate Cary and Cynthia Tucker.

The morning TV air wars get serious again Tuesday with former Alaska Gov. Sarah Palin's guest host slot on NBC's The Today Show — opposite former CBS Evening News' anchor Katie Couric's guest slot on ABC's Good Morning America.

In the lead-in to the faceoff, there was some fun on Today today.

During a phone call with Palin, host Matt Lauer wondered "what are you doing to prepare? Are you reading some newspapers?"

In most places in the U.S., if a parent is charged with abuse or neglect of a child and can't afford a lawyer, he's appointed one. That lawyer's job is to defend the parent and reunite the family if possible.

But faced with a budget shortfall, New Hampshire has taken the unusual step of eliminating that funding.

The court and state officials charged with enforcing the new policy now worry that the lack of representation is hurting parents and their children — and children's advocates are concerned that other states may eventually follow New Hampshire's lead.

For the health policy world, the Supreme Court's tough questioning of the individual mandate last week was a seismic event.

But in Hartford, Conn., the city sometimes called the epicenter of the insurance industry, David Cordani isn't quaking.

Cordani is the CEO of Cigna, the nation's fourth-largest health insurer. He says the insurance industry started changing itself before the Affordable Care Act became law in 2010. And the changes will continue regardless of what happens at the high court.

"Mind is such an odd predicament for matter to get into," says the poet Diane Ackerman. "If a mind is just a few pounds of blood, dream and electric, how does it manage to contemplate itself? Worry about its soul? Do time and motion studies? Admire the shy hooves of a goat? Know that it will die?

...How can a neuron feel compassion?"

Yes, how?

The activist group behind the "Kony 2012" movement and Web video that went viral in March says it will release "Kony 2012, Part II" on Tuesday.

Aziz Ansari is about to hit the road. The 29-year-old comedian and star of Parks and Recreation is embarking on a multicity comedy tour, where he'll be riffing on what he calls the "fears of adulthood."

You know, babies. Marriage. That kind of stuff.

When you think of cutting-edge technology, power tools don't generally come to mind. Take the table saw: Many woodworkers are using 30-year-old saws in their wood shops and, among the major tool companies, there hasn't been much innovation since those decades-old tools came out.

But more and more inventors are trying to make these saws safer — and David Butler is one of them. At his home in Cape Cod, Mass., Butler flips on the fluorescent lights in his basement turned wood shop.

There was a 1.1 percent decline in spending on construction in February vs. January, the Census Bureau just reported. But spending was still 5.8 percent above the level of February 2011.

According to the bureau, spending on home construction was unchanged in February from the month before. Public construction spending was down 1.7 percent.

House prices have crashed. Banks and businesses have failed. Jobs have been axed. People are struggling to make the mortgage.

The Republic of Ireland's 4.6 million people have suffered considerably since the financial crisis began four years ago, forcing their government to turn to the European Union and International Monetary Fund for a $90 billion bail-out.

Good morning.

Our early headlines:

-- Trayvon Martin Case: Voice Calling For Help Isn't Zimmerman's, Experts Say.

-- Mega Millions Mystery: Who Won?

The biggest female box-office star in Hollywood history, Doris Day started singing and dancing when she was a teenager, and made her first film when she was 24. After nearly 40 movies, she walked away from that part of her life in 1968, and started rescuing and caring for animals.

Today's episode of World Cafe celebrates the iconic sound of Memphis, Tenn., and Stax Records by looking back at past conversations with some of its key players.

Mothers of new babies might be forgiven for turning to caffeine to get through those sleep-deprived months. And they might worry that drinking coffee interferes with the sleep of breast-fed babies — the Web is full of such questions. But a new study says it's not so.

Instead, researchers in Brazil found that the babies of heavy coffee drinkers were no more likely to wake up than were babies whose moms didn't have a serious espresso habit.

Crying and colic at 3 months old, as well as frequent night waking at 12 months, were not affected by a mom's caffeine intake.

"A Pakistani court on Monday convicted Osama bin Laden's three widows and two of his grown-up daughters of illegal residency, sentencing them to 45 days detention and ordering their deportation," Pakistan's Dawn newspaper reports.

The wait continues to see who bought the three winning tickets in Friday's record $656 million Mega Millions lottery drawing.

If for some reason you haven't checked yet (yeah, right!) the winning numbers were 2, 4, 23, 38, 46 and the mega ball was 23.

Nylon stockings became all the rage. Black fedoras were the "pure quill" — meaning the real deal. Bing Crosby crooned Only Forever on the console. And Hattie McDaniel was the first African-American actor ever to take home an Oscar.

Ah, 1940. Three score and 12 years ago, America was in a very different place — economically and culturally.

But on April 2, 2012, when the National Archives releases detailed data from the 1940 census, we will get an even keener idea of how much — or how little — this nation has really changed in the past 72 years.