By Michael Hinkelman
Philadelphia Daily News
By all accounts, Derrick Cain is a good son, husband and father who worked as a pipe fitter.
But in 2001, a friend who sold cocaine told Cain he would pay him if he stored the coke at his house. Cain needed the extra cash so he could help put his wife through nursing school.
Mandatory-minimum law led to surge in federal inmates, spending