The Washington Post has an interesting story today about E. coli on lettuce. A batch of lettuce produced in California last month passed through numerous screenings and was sent to U.S. grocery stores. Some of it was also sent to Canada, and the government there found E. coli, which led to a major recall across both countries.

Here are some speculations:

• Globalization increases the safety of American-produced goods because those goods must often pass muster in foreign markets where consumers and governments have different standards and safety procedures.
   
• I don’t know whether American or Canadian food safety procedures are better, but a diversity of systems generates greater information, which allows producers and governments everywhere to improve quality.
   
• Globalization doesn’t lead to a “race to the bottom” on environmental standards as critics often claim. Some countries, such as Japan, apparently have very high standards on food, and that tends to push up standards elsewhere. When Japanese importers demand strict standards from Chinese food producers, Americans consuming Chinese products also benefit.