When are computers most vulnerable to threats or damage?

A)without virus protection
B) with virus protection
C) in a cold environment
D)when connected to the Internet
E) when disconnected from the Internet

Why does miss maudie say "there are just some kind of men who-- who're so busy worrying about the next world they've never learned to live in this one, and you can look down the street and see the results" (lee 45)?