If you can do your job from home, it can be done halfway around the globe.
I can do my job from home, but only after making a physical visit to determine exactly what needs to be done. When I'm finished doing the hardware/software engineering at home, I have to take the work product back out into the field. Some of the field visits are located behind doors with spin dials. Some are in foreign countries. Some are in rail yards strewn across the U.S. Some are in funny looking aircraft. I'm not really worried about job security.