The Economist stories for the week of 31 December 2009

Asian carp advance on Chicago
So much for the engineering wonder that connects the Great Lakes and Mississippi River basins.

House prices and mobility
This, among other things, is a wonderful argument for young people to rent and not own.

Mobile-phone culture
Good comparison and contrast with cell phone use around the globe.

Obituary: Oral Roberts
I can't tell whether the obituary writer was being genuine or sarcastic...