MONTREAL — Young and striking in her black hijab, Mouna Diab was once active in a Quebec youth group that fought discrimination against Muslims by challenging the stereotypes that too often associate them with violence and terror. But the outspoken 26-year-old activist had little to say this week after appearing in a Montreal courtroom to face a charge alleging she had violated a United Nations Security Council arms embargo that prohibits the export of weapons to... (GunPolicy.org)