What is the best field I can take my MS?

I had finished my school in Mechanical Engineering in 1983, and I had worked in one field since.

I have recently lost my job after 26 years, and I have hard time to find a new job.

I am thinking to go back to school for MS.

What is the best field I can pick for more secure future?What is the best field I can take my MS?
I currently have a Diploma in both Mechanical and Electrical Engineering.



I mainly get to use my electrical engineering skills the most. So as someone with some experience, I would suggest something in an electrical field, either electronic {alarm systems, electronic systems for access control e.g. finger print, I.D. card readers} or something in the heavy current industry{Electrical installations or maintenance of industrial and engineering shops} that is where the most money is.



I am sure you might find a course that would fit your choice.



Believe me when I say try not to go for electrical home maintance, it does not pay that much.



I hope I have given you some idea where to go from here.What is the best field I can take my MS?
networking and security?