Actor Cameron Douglas was serving five years prison time for a drug law violation, when he was tested positive for drug use. The judge added 4.5 more years to his sentence, the heaviest penalty ever dealt out in that situation. He wrote an editorial, "Words Behind Walls," submitted by his girlfriend on his behalf to the Huffington Post.
"Words Behind Walls" is not mainly about his own story -- although he goes into being kept in solitary confinement for 11 months -- but mostly about the tragedy and injustice of half a million nonviolent drug offenders in the prisons and jails, many simply in a cycle of addiction and relapse like he is.
His piece, linked above, is worth reading -- but not before I remark on the incomprehensible cruelty shown by the judge in this case. That judge must be some kind of lost soul himself. At least that is how it looks from here.