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Rick Santorum racked up two wins in the South, Newt Gingrich vowed to stay in the race until Tampa, and Mitt Romney failed to put doubts about his candidacy to rest.

Saturated fat, the stuff in meat and dairy foods, was associated with lower sperm counts, in a study of 99 men who were clients of fertility clinics. The results, though preliminary, suggest there's something men can do to boost the odds their sperm are up to their evolutionary task: eat better.

Two transformers caught fire Tuesday evening, cutting power to thousands and sending thick black smoke over the area. No serious injuries have been reported.

The Israeli government wants America's support and help for any possible attack on Iran. U.S. officials have said this isn't the right time for airstrikes. New York Times Washington correspondent David Sanger explains what's at stake for both sides.

Oregonian editorial page editor Bob Caldwell suffered a fatal heart attack Saturday. It turned out that he had been with a much younger woman at the time. The lurid details have played out in the newspaper he worked for.

The American and British leaders reaffirmed their commitment to gradually withdrawing most forces by the end of 2014.

After two years of going with the wrong team to win it all, President Obama is counting on North Carolina — the team he correctly picked to win the 2009 NCAA men's basketball championship — to end up No. 1 this year.

Global online pressure group Avaaz has given crucial support to activists who aim to topple President Bashar Assad. It has smuggled in medical supplies and smuggled out images and information. But its high-profile and high-risk operations have stirred debate about the role it's playing.

The cooking show, which will have its semi-finals next week, pits Indian chefs against Pakistani chefs. It exploits the long rivalry between the two countries — something that has rarely been a joking matter.

Greg Smith's scathing op-ed resignation letter is the talk of Wall Street. Now Goldman Sachs is trying to minimize the damage. And the Web is lighting up with chatter and parodies.