And a double-digit victory, which she got, 10 points, means that she would live to fight another day, that some were arguing that she had a credible argument to superdelegates and people that have yet to fight, that she's the stronger candidate against McCain.

NPR: Clinton Takes Pennsylvania Primary

Some might wonder why so much effort and money is being devoted to fight a disease that is contracted by fewer people than can fit on a commercial airplane.

WSJ: Bill Gates and Michael Bloomberg: Our Plan to Eradicate Polio