What if they are a drug dealer? Where does the line get drawn?
If its Ross Ulbrict getting laid behind bars since he has life in prison that is fine with me.
The question is to let the privileges fit the crime and then treat them case by case.
That said I also read about the facebook of prison mates seeking a relationship and that did creep me out a bit but if someone went through the process of getting vetted to choose a person in prison to date well its their absurd choice much as I'll dismay at it.
http://www.cbc.ca/news/canada/montreal/luka-magnotta-joins-dating-site-for-prisoners-1.3132104