Payroll tax measure should have been a quick vote, according to some in Congress. But the Senate will not vote on the House's payroll tax cut until they "finish our most immediate concern first," says the Senate minority leader.

The frogs are so small they seem to have hit the lower limit of body size for frogs and toads, so it's unlikely that researchers will find anything much smaller.

The NTSB urged a cell phone ban for drivers Tuesday. But some states only have minimal rules on electronic devices in cars, and debate continues over safety of hands-free talking.

AP - Congressional negotiations over a bill extending a payroll tax cut and unemployment benefits can begin as soon the Senate rejects a version the House approved despite a White House veto threat, the Senate's top Democrat said Wednesday.

AP - Mitt Romney says his business background makes him a better presidential candidate than Newt Gingrich, who has spent decades in Washington. But the argument is not moving Republicans his way, underscoring Romney's challenge in finding a way to stem Gingrich's rise three weeks before the Iowa caucus, a new Associated Press-GfK poll finds.

AP - President Barack Obama saluted returning troops returning from Iraq Wednesday, declaring that the nearly nine-year conflict is ending honorably, "not with a final battle, but with a final march toward home."