On transitions, transparency, and new beginnings [from the Editor´s Bench]

The focus of this issue is distributed systems. We have an article concerning a safety critical network for distributed smart traffic signals, a column that deals with distributed measurement systems, and a control theory tutorial that deals with how one treats delays. (Delays are often a problem in distributed systems.) We also have an article on microwave measurements, an addendum to tutorial 12 on outputs and actuators, and a column that deals with advanced learning tools. Enjoy!