Bob Greene : America may end up with only two dominant occupations . Greene : One is carrying stuff to people 's homes , the other is protecting them . Comment: Greene : -- The other growth field is private security ; we employ more guards now .
Bob Greene : America may end up with only two dominant occupations . Greene : One is carrying stuff to people 's homes , the other is protecting them . Comment: Greene : The other growth field is private security ; we employ more guards now .