Even in ancient Greece, bribes and corruption were part of the deal.

Sepp Blatter is taking a permanent timeout from FIFA.

The Chinese government has detained GSK's China chief over corruption charges.

Chinese police took unprecedented step of charging a foreign executive of bribery.

According to a global public opinion survey, most people in the world believe corruption has increased in the last two years.

Listener Geri-Ellen Dow heard our Freakonomics segment on paying kids to do better in school, and tried the experiment out on her own son.

The charge: violating the U.S. Foreign Corrupt Practices Act. Pfizer's drug sales reps paid bribes to get Pfizer drugs used by doctors in countries like China, Russia and Bulgaria.

And not just promising them a reward. You have to give it to them upfront. Freakonomics' Steven Levitt on how that works.