By CNN's Tracey Webb
Your daily scoop of what State of the Union is watching today, September 3, 2014.
1. ISIS. U.S. intelligence officials are examining the terrorist group's latest execution video. They are trying to determine where and when it was shot and whether the man seen beheading American Steven Sotloff is the same person who murdered U.S. photojournalist James Foley. ISIS says the executions of Sotloff and Foley were in retaliation for the ongoing U.S. airstrikes in Iraq. President Obama said Wednesday the United States would not be intimidated by the jihadist group, while Vice President Biden vowed that the U.S. would pursue ISIS "to the gates of hell until they are brought to justice."