Re "Sooner than later, US will have to confront ISIS" (Viewpoints, Aug. 25): Trudy Rubin is right: ISIS must be eliminated before the jihadist militia attacks the U.S.
The 9/11 terrorists who flew hijacked planes into the World Trade Center and the Pentagon struck at the heart of America's financial and military greatness. The next attack could be carried out on our nation's political or entertainment capitals (Washington, D.C. or Hollywood). From ISIS' perspective, they are ground zero in its holy war against U.S. hedonism.
Dirty bombs probably would be the ISIS weapon of choice in either case. However, there is another scenario to consider: what if the Colorado River is poisoned? It carries water to 40 million people daily. If ISIS could pull that off, it would be a geopolitical game-changer.
Any breach of American sovereignty by ISIS would be viewed as a victory in their eyes. We cannot allow this to happen. -- Denny Freidenrich, Laguna Beach