Why a broad amnesty for Northern Ireland's Troubles remains unlikely.
Now that cannabis is almost legal in Canada, many are celebrating. Before we forget, we should remember those that have been arrested for previous crimes and push for amnesty.
Mexico's presidential front-runner wants to end violence in Mexico by pardoning drug traffickers and corrupt officials. Some 235,000 people have died in the country's 11-year cartel war.
Nigeria's disarmament, demobilisation and reintegration programme includes monthly allowances which created new problems in the Niger Delta region.