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Medicaid is a campaign issue for the first time in years. Republicans cite studies to say the health care program for those with low incomes has failed, and they want to turn it back to the states. But Medicaid researchers say those studies don't portray Medicaid accurately.

Calcium has been touted to stave off osteoporosis and promote bone health. But new research suggests going overboard on calcium consumption could lead to kidney stones or even a heart attack.

A Norwegian commission on Monday issued a report criticizing authorities for failing to prevent and interrupt a bombing and shooting rampage by Anders Breivik. He killed 77 people last year. Most Norwegians feel their country showed the proper response to the violence.

With Rep. Paul Ryan now installed as Mitt Romney's choice for running mate, the contests shifts to a higher gear. And Iowa is again where the contenders are focusing. Both Ryan and President Obama will be there today.

Also: Google cuts 4,000 jobs at Motorola Mobility; most of those killed by earthquakes in Iran are women and children; excessive heat warnings continue in Arizona, California; Obama to announce food aid for drought-stricken farmers.

Haboobs — huge dust storms — are hitting the city more often than they used to. Scorching temperatures, even by Arizona standards, and unusually dry conditions are combining to create more of the dirt clouds.

Over the Pacific Ocean, there's going to be a test of an experimental unmanned aircraft called the X-51A WaveRider. If all goes as planned, it will accelerate to about 3,600 mph — a speed that could get you from L.A. to N.Y.C. in 46 minutes.

The cost of land along Veterans Memorial Boulevard — east Jefferson Parish's main commercial corridor —has reached historic highs indicating a strong…

The White House has exerted executive privilege over the documents in question. Republicans say Obama has overstepped his authority.

The London 2012 Olympics are officially over, but people are still buzzing about Sunday's closing ceremony. It included many of the highlights of British culture and history that weren't in London's opening ceremony. And in America, some viewers are angry about what was left out of the U.S. feed.