Bob Greene : We may end up with only two dominant occupations . Greene : One is carrying mail to people 's homes , the other is protecting them . And in the long run , the major beneficiaries of this shift in habits could very well turn out to be the people who undertake a decidedly low-technology endeavor : grabbing a box from the back of a truck and walking with it to a house . He says with the rise of online shopping , more people need these services . Greene : The other growth industry is private security ; we employ more people now .
Bob Greene : We may end up with only two dominant occupations . Greene : One is carrying mail to people 's homes , the other is protecting them . He says with the rise of online shopping , more people need these services . Greene : The other growth industry is private security ; we employ more people now .