Rockwell has a split of commercial and government. No idea on the distribution of levels of confidentiality on the government work, but I definitely agree that

Rockwell has a split of commercial and government. No idea on the distribution of levels of confidentiality on the government work, but I definitely agree that a lack of access to online reference materials would a hard pass for many engineers. I know they do lots with GPS and flight displays. Beyond Rockwell, much of the city is employed by grain processing. Cargill, Penford (it has a new name now, don't know it), general mills, quaker oats, and Conagra all have large factories in the city.