The article delves into the technical details surrounding the spread of this worm and also how it may have found its way to PLCs in an Iranian nuclear facility. There is an ongoing diplomatic contretemps surrounding this development, just as the there is controversy about its significance for other users.

The rest of the issue will be more familiar to long-time readers, sort of like comfort food after a really stressful weekend. When Mike Flaherty of tekWorx discusses that company's success at saving Merck cooling savings of $150,000 annually, we can all put our engineering hats back on.

Similarly Brad Lynch's article on network control centers will appeal to those who support the  human factor in mission-critical operations. We also look at human error in the data center in an article written by David Boston.

Finally, Emerson's Brad Nacke takes a look at the purchasing and design barriers facing the feds as they try to consolidate their data centers.

I don't want to overlook the contributions of our columnists in this report. In fact, I'd like to recommend that you look particularly for the coverage these professionals bring this issue. Peter Funk, for instance, talks about the legal issues facing large data centers when they try to procure power supplies.

Bruce Myatt takes a look at the strengths and weaknesses of modular and container data centers.

Dennis Cronin wants to remind us of the importance of commissioning. His column laments the lack of suitable training for data center personnel.

Andy Lane seconds Cronin's observations, while taking a look at some of the better training programs that he sees from the talent perspective.

And  not to be overlooked, Doug Sandberg reminds the new generation of workers to learn the hard-learned lessons of the past. Technologies and business models change, but the principles of good service remain constant.