Despite the public love affair with Mark Zuckerberg, he is only a 28-year-old with zero experience running a publicly traded company or even working at another publicly traded company.

FORBES: Facebook Follies: How Not To Get Burned

Meanwhile, Mexican authorities are focusing on a young boy being referred to as "patient zero" by his doctors -- 5-year-old Edgar Hernandez, who survived the earliest documented case of the swine flu outbreak.

CNN: World battles swine flu as death toll rises

"I knew zero about retail or owning a business, " says the 29-year-old New Yorker, then a real estate agent.

CNN: Try out 'dream job' before you jump

Let's put it this way: If we screen 1, 000 50-year-old women for 10 years, somewhere between zero and one will benefit.

WSJ: Should All Women Over 40 Get Annual Mammograms?