Mexico's campaign to recover prehispanic artifacts

Mexico, a country with a painful colonial history, is staging an international pressure campaign to get stolen artifacts and wealth returned to the country. But rather than using lawyers to harass museums and auctioneers, it's focusing instead on appealing to the conscience of those holding these priceless pieces of history and using social media to lay on the guilt. CGTN’s Alasdair Baverstock reports.