Lora Kolodny for TechCrunch:  For Americans struggling with stagnant wages, under- or un-employment, one of Donald Trump’s most appealing campaign promises was to bring manufacturing jobs back to the U.S.

Navigating the complexities of policy, tariffs and geopolitics would make that hard enough already for the president elect. But technology will make this promise nearly impossible to fulfill.

Why? Because manufacturing jobs are increasingly done by robots, not people.

Robotics have already helped reduce reliance on labor overseas for manufacturers in automotive, electrical and electronics industries, according to a fresh policy report from the United Nations Conference on Trade & Development.  Cont'd...