President George W Bush official website www.whitehouse.gov says, "President Bush's top priority is the safety and security of the American people. Though America and its allies are safer since 9/11, we are not yet safe. We have important challenges ahead as we wage a long-term battle not just against terrorists, but against the ideology that supports their agenda"
What does "THE IDEOLOGY THAT SUPPORTS THEIR AGENDA" mean? What is "their ideology"?
