But I thought it was worth going into some more detail given the issue has garnered more debate over the past month.

FORBES: Why Japan Is Bad For The World

Some land may have already been leased for generations, when the assets below were thought to be worth very little.

FORBES: Shale Leases: Promised Land

Lehman released some news last week that, on their new estimate, their bank was worth several billion dollars less than they thought it was before.

NPR: Lehman Brothers, Merrill Lynch: What Does It All Mean?