Good morning. On Friday's agenda: high-frequency trading, of course, plus Wal-Mart as Godzilla and no wonder Warren Buffett never learned to use voice mail:

The SEC wants to ban flash trading (New York Times)

Oh come on, Wall Street's been doing that kind of stuff for a century (New York Times)

A better way to reform Wall Street (Clusterstock)

How Wal-Mart will take over the world (or implode) (The Nation)

A blockbuster week for the book business (NPR)

I hate voice mail! (Marketplace)

Obama targets largest group of uninsured - young people (PBS NewsHour)