Michael Chertoff:

We are in a race against time.

Nicole Perlroth:

Janet Napolitano knows she has a problem that will only worsen. So she needs her own hackers. "We have to show them how cool and exciting this is," said Ed Skoudis.

One answer? Start young, and make it a game, even a competition.

Mary Meeker:

Do humans want everything to be like a game?

Abigail Pesta:

For the past year and a half, Brett Coulthard has been running a business, the Frivolous Engineering Co., that sells kits to build useless machines. For people who would rather not spend any money on a useless machine, Mr. Coulthard also provides free instructions.

Marvin Minsky dreamed up the useless machine, although the name he gave it was the "ultimate machine."

Nathan Heller:

Back in Sweden, the guys told me, they were studying computer science at university, and -- well, you know how it is: one thing leads to another, and soon you find yourself carving sheep bellies for a little extra cash.

Benjamin Carlson:

The "junket" industry of Macau brings high-rolling gamblers to the territory and collects debts on behalf of the casinos. These businesses also allow VIPs to stake more than the $50,000 legal limit on how much money Chinese are permitted to take out of the country every year. (In essence, junkets collect their clients' money on the Chinese side of the border and give them loans to gamble on the Macau side.)