The powerhouse CEOs of the midwest

• In today’s CEO Daily: Diane Brady on the midwest's powerhouse CEOs—and the rise of St. Louis.
• The big story: Joe Biden diagnosed with "aggressive" form of prostate cancer.
• The markets: Down on debt fears.
• Analyst notes from Wedbush, HSBC, and JPMorgan.
• Plus: All the news and watercooler chat from Fortune.

Good morning. The first thing I noticed in Enterprise Mobility CEO Chrissy Taylor’s house in St. Louis was the art. These were large...