CBC's Nick Purdon and producer Leonardo Palleja meet Canadian Jose Maria Novielo, a man who had to endure horrors under Argentine dictatorship 35 years ago.

Novielo spent six years in an Argentine prison and was tortured after being arrested while working in a political book store. Some 30,000 Argentines who were kidnapped during the dictatorship are still missing, according to human rights group estimates. Decades later, Novielo has the opportunity to return to his homeland to testify against the torturers, killers and kidnappers now on trial for crimes against humanity.

"My focus now is to remember, remember, remember," Novielo says. "And it's a funny thing because for many years, I tried not to remember."