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Now Playing: 09-11-12 Marketplace Morning Report

Today in Chicago, day two of the teachers' strike begins. The city and the teachers union failed to agree on a new contract, and around 30,000 educators are on strike. It's a rocky second day for another big organization: After a seven-year effort to open a part of the Arctic Ocean to oil drilling, Shell Oil has already hit a snag. And Apple is expected to unveil the new iPhone 5 at a huge press conference tomorrow in San Francisco. Of course, no one pitched a new product like Steve Jobs. He made those launches famous. This time, Apple's Chief Presenting Officer will be Tim Cook. What does it take to make a great pitch?