What is scope of operations research? (See details below)

Operations Research (OR) is mathematical science that can be applied to solve optimization problems in manufacturing, service and other industries.

I am considering to study OR, possibly masters. What do you think or know about the scope of OR in near future? long term? Is it viable?

What kind of jobs are there? research oriented? Is it easy to get a job in OR field?

Regarding me, I have already a masters in Industrial engineering (so I know OR at least); and want to further my knowledge of OR. Where to study it?...is another problem, but I will look at it afterwards.

Do you know any good universities around you or anywhere in the world that are good for OR? Please suggest names, I want to look at their curriculum. Because then I will be able to compare it with what is offered here in India, and decide afterwards. Cost is also another hurdle I have to look for then.

Thanks in advance.