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Unlike the technologies in laptops, smartphones and electric cars, the batteries inside them have been slow to evolve. In Silicon Valley, more than 40 companies are working on finding a battery breakthrough. And they're facing international competition.

In Oregon, the online health marketplace isn't working for people looking to buy individual policies. But the state has been rapidly expanding Medicaid anyway. In Texas, insurance helpers may face state regulations that would make it even harder to assist people seeking coverage.

The president says the U.S. should give negotiators more time to reach a deal on Tehran's nuclear program before passing tougher restrictions.

Recreational marijuana is legal in Colorado. But that doesn't mean residents want their air to smell like a pot rally. Denver is getting more calls to enforce an odor ordinance that can impose a buzz-killing fine on violators. To find them, the city relies on a device called the Nasal Ranger.

Nervous over a steep spike in armed robberies, several Oakland, Calif., neighborhoods have pooled funds to hire private security patrols. And while some residents feel safer, others worry that there is no one policing the private police force.

France is deep in debate, wondering if there's a resurgence of an old colonial racism, or if people have just become more tolerant of bigots. The questions stem from a series of race-based taunts against Justice Minister Christiane Taubira, who is black.

President Obama has acknowledged the fumbled rollout of his signature health care law has hurt his credibility and that of fellow Democrats. He offered a minor change to the law in hopes of calming Democratic nerves, and beating back bigger changes proposed by House Republicans.

While the aid effort continues to ramp up, many in the typhoon-ravaged nation are still waiting for food, water and adequate shelter. "Nothing. Nothing happened," one survivor said Friday after waiting hours for food aid that never arrived.

A mollusk named Ming was that old when it was dredged up in the ocean off Iceland several years ago. It was named Ming in honor of the Chinese dynasty it was born into.

The Communist Party said it would loosen restrictions on foreign investment in e-commerce and other businesses, and allow private competition in state-dominated sectors. The announcements are being described as China's biggest economic overhaul in two decades.