A new $612 million (euro427.7 million) effort hopes to increase physical activity among U.S. students by getting them to bike or walk to school.Today, only about 15 percent of U.S. schoolchildren travel to school under their own power.The program seeks to change that by offering...

Gavin Newsom's super-secret presidential bid, I came across a passage about Rudy Giuliani in the book Santa stuffed in my stocking, The Tipping Point. The book discusses how ideas and trends become popular and uses as one example the dramatic crime reduction in New York...

Gov. Arnold Schwarzenegger boasted Wednesday that California's leadership is making environmentalism both sexy and mainstream, not a guilt-driven movement for "tree-huggers" and "fanatics.""Environmentalists were no fun, they were like prohibitionists at the fraternity party," the moderate Republican governor told a student audience at Georgetown University...

The way Simon Cowell sees it, Jordin Sparks and Blake Lewis are the most evenly matched "American Idol" finalists yet and either could win Wednesday."It's all to play for. I think it's going to be a good competition. ... You've got the better singer versus...

In the novel, The Tipping Point, by Malcolm Gladwell epidemics are meant to include smoking, crime and even Hush Puppies. People you know can spread social or medical peidemics.