Number of missing on Mexico's highway of death rises to 71 July 7, 2021 FacebookTwitterEmail 3 1of3Family of Ricardo Valdes, who disappeared on the road on May 25, placed missing posters during a protest in Monterrey, Nuevo Leon state, Mexico, Thursday, June 24, 2021. As many as 50 people in Mexico are missing after they set off on simple highway trips between the industrial hub of Monterrey and the border city of Nuevo Laredo; relatives say they simply disappeared on the heavily traveled road, which has been dubbed 'the highway of death,' never to be seen again.Roberto Martinez/APShow MoreShow Less 2of3Family of Ricardo Valdes, who disappeared on the road on May 25, put up posters with their photography during a protest in Monterrey, Nuevo Leon state, Mexico, Thursday, June 24, 2021. As many as 50 people in Mexico are missing after they set off on simple highway trips between the industrial hub of Monterrey and the border city of Nuevo Laredo; relatives say they simply disappeared on the heavily traveled road, which has been dubbed 'the highway of death,' never to be seen again.Roberto Martinez/APShow MoreShow Less