Lost or stolen laptops and your privacy

I just saw this story on Slashdot:

Apparently companies are even worse about losing our data than we suspected. From the article:'According to a study of 106 major U.S. airports and 800 business travelers published by the Ponemon Institute and Dell Computer, about 12,000 laptops are lost in airports each week. Only 30 percent of travelers ever recover the lost devices. Nearly half of the travelers say their laptops contain customer data or confidential business information.'