Al Jazeera's Nick Spicer reports on Canada's security laws that have led to the detention of several Muslims.
Canada's "security certificate" law allows the Government to detain non-citizens or put them under house arrest without charge.
Following the September 11 attacks on the United States, neighboring Canada used a long-standing legal mechanism to detain several Muslims.
Years later those men, such as Mohammed Harkat, are still living uncertain lives.
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