As you know from reading this blog, my friend and the Father of Control System Integration, Nels Tyring, was recently diagnosed with lung cancer just before his 76th birthday next month. Jeez, what a birthday present! Nels is having surgery to remove the tumor tomorrow, and I would ask that you send prayers and good thoughts his way. I received his most recent article for Control yesterday, and I'd like him to be around to contribute many more. Good luck, Nels!