Morning Edition

Mexicans go to the polls July 1 to choose their next president, and polls show that voters seem inclined to embrace the past. The center-left Institutional Revolutionary Party, or PRI, which ruled the country for more than seven decades before being ousted 12 years ago, holds a solid lead.

But Mexico's young are making their voices heard: Some fear a return of authoritarian rule; others simply want jobs.

Making Noise

Linda Wertheimer talks to Dr. Ian Roberts, of the London School of Hygiene and Tropical Medicine. Roberts led the research on a new study on global obesity. It shows that weight, not just population size, should be taken into account when planning how to deal with increasing pressure on resources.

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LINDA WERTHEIMER, HOST:

Good morning. I'm Linda Wertheimer. Faster than a speeding bullet, more powerful than a locomotive and not born in Ohio. The idea of Superman was conceived in Glenville, Ohio back in the 1930s, but when a proposed Superman-themed license plate called Ohio birthplace of Superman, DC Comics and Warner Communications objected. Superman, they point out, was born on the planet Krypton. It's MORNING EDITION. Transcript provided by NPR, Copyright National Public Radio.

Leaders of the world's biggest economies wrapped up the G-20 summit in Mexico Tuesday with a promise to work together to promote jobs. The meeting comes amid worrisome signs of slowing growth in the United States and elsewhere.

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And our last word in business is: supersized couch potato.

This week, Japanese electronics maker Sharp unveiled what it's calling the biggest LED TV on the planet. The 90-inch set has WiFi built in and you can buy it with a webcam option. You could, say, Skype with 50 people at once and see all their faces.

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Of course, you would need a lot of wall space and a fat wallet. It cost $11,000.

That's the business news on MORNING EDITION. I'm Linda Wertheimer.

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Mitt Romney has wrapped up his most extensive campaign trip since becoming the all-but-official Republican nominee for president. Over the past five days, he visited six potential battleground states, touring each by bus. Along the way, he honed his attacks on President Obama, while also trying to show voters a more relaxed Mitt Romney than they've seen so far.

The tour, called Every Town Counts, stayed mostly in counties friendly to Republicans, ending with three stops in Michigan yesterday, the state where Romney was born.

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Geologists have noticed an increase in the number of small earthquakes in the U.S. They suspect the cause to be wastewater wells, where polluted water from industrial processes is pumped deep underground. None of the quakes has caused serious damage.