Today, it has been said, the world is "flat," as online media allow information to move easily from point to point across the earth. International legal differences, however, are increasingly affecting the ease with which data and ideas can be shared across nations. Copyright law, for example, affects the international flow of materials by stipulating who has the right to replicate or to share certain kinds of content. Similarly, perspectives on privacy rights can differ from nation to nation and affect how personal information is shared globally. Moreover, national laws can affect the...