What to Watch on Wall Street for Tuesday, September 9th 2014

In today's "What to Watch on Wall Street" segment for Tuesday, Sept. 9th 2014, we take a look at the financial markets starting with Apple's (AAPL) unveiling of the highly-anticipated iPhone 6 and iWatch. On the earnings front, we're covering earnings results of security company Palo Alto Networks (PANW), Krispy Kreme Doughnuts (KKD) and Barnes & Noble (BKS). In Washington, President Barack Obama will be meeting with congressional leaders to discuss U.S. strategy against ISIS in Iraq and Syria. For the latest financial news and updates from Wall Street, check back here on TheStreet.com throughout the day.