Justin Ling: Prisoners also deserve free speech

No class of Canadians suffers more arbitrary restrictions to its speech rights than inmates

For years, Glen Assoun had to keep making new hats. Each one, like the last, read:

WRONGLY CONVICTED 1998

Assoun's ex-girfriend, Brenda Way, was stabbed to death in an apartment in Dartmouth Nova Scotia in 1995. A shambolic police investigation and court process eventually led to Assoun's conviction for second-degree murder. 

Assoun insisted he hadn’t done…