Ms. Sharapova pointed to Ms. Azarenka's improved consistency and capacity to turn a defensive shot into an offensive one.

WSJ: Azarenka Wins Australian Title

But if it does, all 6.4 billion people on the planet would need a flu shot--many times the current capacity of about 300 million doses annually.

FORBES: A Killer Virus Spreads

Last year after Rep. Gabrielle Giffords was shot, her colleague Carolyn McCarthy of New York introduced a bill to ban high-capacity magazines like the one used in that multiple murder.

FORBES: Is the Mighty NRA Beginning to Topple?

Motorists in California got a taste of this last year when gasoline prices shot past 33 cents a liter because of accidents at West Coast oil refineries, which were at full capacity already.

FORBES: Where oil is cheap