I saw a photo on Wikipedia, where a neutral conductor (presumably from a GFCI breaker) crosses over an exposed portion of the hot bus bars. Is this a code violation?
https://en.wikipedia.org/wiki/File:EEUU(GE)BreakerpanelInnards.jpg
https://en.wikipedia.org/wiki/File:EEUU(GE)BreakerpanelInnards.jpg