Article Photos: List of 1000s of missing people raises doubts in Mexico

In this May 9 file photo, people hold photographs of their relatives who went missing during a protest that is part of the campaign "March of National Dignity. AP file photo <strong>Alexandre Meneghini - AP file photo</strong>

In this May 9 file photo, people hold photographs of their relatives who went missing during a protest that is part of the campaign "March of National Dignity. AP file photo Alexandre Meneghini - AP file photo