Endangered

So here are some interesting statistics:

• The population of the United States is 309 million people.^1.

• The number of cellular mobiler phones is currently 294.4 million.^2.

So who is using phone booths these days?  I guess superman still needs someplace to change into his super clothing?

^1. The United States Census Bureau, United States Census 2000.
^2. The World Bank Group "Data Catalog" The World Bank.