What's On: Earnings, the Debt Ceiling and Housing By: CNBC.com News July 26, 2011 at 00:13 AM EDT See what's happening, who's talking and what will be making headlines on Tuesday's Squawk on the Street. Read More >> Related Stocks: 3M Co Amazon.com BP Plc ADR Ford Motor Hershey Co Lockheed Martin United Parcel Service