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People without health insurance don't get enough preventive care — simple but important things like vaccinations and blood tests.

But surely having insurance every now and then is better than none at all, because people can get caught up on their tests when they are covered, right?

That's a widely held view, and one that would be good news to the millions of people who go on and off health insurance each year. Some of them are losing or changing jobs. Others slide on and off Medicaid as they take on temporary work, marry or divorce.

Robert Carter, who was a key member of the legal team that convinced the U.S. Supreme Court to outlaw segregated public schools in 1954's landmark Brown v. the Board of Education decision, died Tuesday. He was 94.

According to The New York Times, "the cause was complications of a stroke, said his son John W. Carter, a justice of the New York Supreme Court in the Bronx."

In Egypt, a disturbing trend has emerged in recent clashes between protesters and security forces: children placing themselves on the front lines.

Activists say several have been killed or wounded in recent months by gunfire and tear gas. Plus, one out of every four protesters thrown in jail following clashes in December was a child.

Their advocates say most, if not all, of these kids live on Cairo's streets, and that they see the revolution as a way to escape their isolation from society.

The Missionary Church of Kopimism has one central belief: that it's okay to copy information, in any form.

"This order for the mass evacuation of all persons of Japanese descent denies them the right to live," Seattle native Gordon Hirabayashi wrote in 1942. "I consider it my duty to maintain the democratic standards for which this nation lives. Therefore, I must refuse this order of evacuation."

America's big three automakers all experienced double-digit sales growth in 2011, helping the U.S. market continue its rebound from a dismal 2009. With annual reports out today, Chrysler says its sales were up 26 percent, while General Motors and Ford Motor Co. reporting gains of 13 and 11 percent, respectively.

Saying he's there "to make sure we make Mitt Romney the next president of the United States of America," 2008 Republican presidential nominee Sen. John McCain just returned to New Hampshire to endorse the White House bid of his one-time rival, former Massachusetts Gov. Mitt Romney.

McCain and Romney fought a hard battle for the GOP nomination n 2008, after which Romney endorsed the Arizona senator.

The number of twins born each year in the United States has more than doubled since 1980, federal health officials reported Wednesday.

For most of the last century the rate at which American women gave birth to twins remained steady at about 2 percent of all births.

But the rate increased steadily between 1980 and 2009, according to the latest data from the National Center for Health Statistics. And by 2009, more than 3 percent of all births produced twins.