The October issue of Control focuses on the new security risk called Stuxnet in out cover story called "Worst Fears Realized." What should you do to protect your control systems now? Other stories feature the latest in OPC security, Fluor's use of Coriolis flowmeters to fast-track the development of China's largest solar-grade polysilicon plant, the use of simulation in design, training and operations. Plus, Ask the Experts, Control Talk and On the Bus and you other favorite columns.