Christian conservative Rick Santorum reignited his White House bid, claiming an unexpected trio of state wins that raised new question marks over Republican frontrunner Mitt Romney.   more

When Tiger Woods was starting out on the PGA Tour he thought playing hurt was just part of what it took to become a successful golfer.   more

Electronic Arts has released a much-anticipated "Kingdoms of Amalur: Reckoning" video game created by an all-star team put together by World Series champion pitcher Curt Schilling.   more

US President Barack Obama tested a new prototype Tuesday for his commander-in-chief's arsenal -- a high-powered marshmallow gun that sent a tasty missile screaming through the White House.   more

A California federal court is to decide for the first time in US history whether amusement park animals are protected by the same constitutional rights as humans.   more

The FBI has said it is monitoring a growing extremist threat from "sovereign citizen" movements, and is targeting their activities to prevent a repeat of the 1995 Oklahoma City bombing.   more

US consumers borrowed much more than expected in December, official figures showed Tuesday, pointing to improved confidence and the potential rejuvenation of a key pillar of economic growth.   more

Yahoo! on Tuesday announced a boardroom shakeup to breathe fresh life into a pioneering Internet firm that has been struggling to re-invent itself and appease disappointed investors.   more

A US federal appeals court struck down a California law that strips gays and lesbians of the right to marry in the latest round of America's long-running battle over same-sex marriage.   more

US presidential historian Barry Landau, known for his huge collection of memorabilia, pleaded guilty to conspiracy and the theft of dozens of historical documents, US officials said.   more