AP - On the weekend before the pivotal Florida primary, Newt Gingrich vowed Saturday to stay in the race for the Republican presidential nomination until the national convention this summer even if he loses Tuesday's vote. Front-runner Mitt Romney poured on the criticism of his rival in television ads airing across the state.

AP - A disorderly and potentially devastating Greek debt default is looking much less likely.

AP - The embattled president of Yemen arrived Saturday in the United States for medical treatment for burns he suffered during an assassination attempt in June.

AP - Looking around at the tens of thousands of people waving American flags and cheering, Army Maj. Rich Radford was moved that so many braved a cold January wind Saturday in St. Louis to honor people like him: Iraq War veterans.

AP - A U.N. nuclear team arrived in Tehran early Sunday for a mission expected to focus on Iran's alleged attempt to develop nuclear weapons.