Although previous studies have demonstrated what scientists call “herd immunity,” none have been so incontrovertible as a study of farming colonies in Canada.

U.S. safety regulators and Toyota Motor Corp dispatched investigators to San Diego on Tuesday to inspect a Prius that sped out of control on a California freeway a day earlier.

U.S. Chief Justice John Roberts said Tuesday the scene at President Barack Obama's first State of the Union address was 'very troubling' and that the annual speech to Congress has 'degenerated into a political pep rally.'

A New York congressman who resigned under an ethics cloud has been under investigation for allegedly groping multiple male aides, the Washington Post reported Tuesday.

She was her usual strong self this week, nailing Tracy Chapman’s “Give Me One Reason,” and the judges noted that her big selling point was that she knows herself and who she is as an artist.

As much as half the food aid sent to Somalia is diverted from needy people to a web of corrupt contractors, Islamist militants and local U.N. staff, according to a new report.

Celizic: Connecticut won its record 71st straight game on Monday. On Tuesday, the Huskies extended it to 72. No women’s team has ever won more consecutive games. Only UCLA’s 88-game winning streak that ran from 1971-74 is longer in D-I hoops. And America greeted this extraordinary achievement by erupting into a coast-to-coast yawn.

A federal indictment accuses a Pennsylvania woman of using the Internet to recruit jihadist fighters and promote terrorism overseas, NBC News reports.

Robert “Joe” Halderman has pleaded guilty to trying to shake down David Letterman over the comic’s sexual affairs.

With DeGeneres on board — and Simon Cowell on the way out — judges Randy Jackson and Kara DioGuardi seem to have decided it's time to start trying harder.

A ring accused of helping people from the Mideast obtain student visas by taking proficiency exams and classes for them has exposed a vulnerability in tracking foreign students.

The actress Lindsay Lohan has sued E*Trade Financial Corp for $100 million, saying a 'milkaholic' baby girl who appeared in a recent commercial was modeled after her.

Sean Evans had 19 points and 10 rebounds to lead St. John's to a 73-51 victory over Connecticut on Tuesday, extending the Huskies' losing streak in the Big East tournament to six games and in effect ending their chance for an at-large bid to the NCAA tournament.

Every human competitor now running the Iditarod Trail Sled Dog Race will be tested for alcohol and illegal drugs on the trail for the first time in the history of the 1,100-mile race — a change defending champion Lance Mackey believes is directed at him.

Israel approves the construction of 1,600 new homes for Jews in disputed east Jerusalem — a move that is sharply denounced by Vice President Joe Biden during a visit there.

The pope's brother said in an interview that he slapped pupils across the face at a German boys' choir, and that he was aware of allegations of abuse but did nothing about it.