One important need for geospatial data such as this: political borders often change.

The border between the languages does not follow the political borders.

Along with Islam it makes us one, really, despite the political borders.

Flows of trade and investment can surmount political borders between states.

The 38th parallel increasingly became a political border between the two Korean states.

Some Israeli politicians have admitted it is less a security measure than a new political border.

All along, Sharon will insist that the fence is a security device, not a political border.

Fictional countries can also be used in stories set in a distant future, with other political borders than today.

Development challenges increasingly do not respect administrative or political borders.

Second, the fence is not a permanent political border but a temporary security barrier.