Sofía, a medical assistant in Reynosa, a scruffy border city in northern Mexico, has a regular morning routine.

She wakes at 6am and readies her son for preschool; then she reviews her social media feeds for news of the latest murders.

Updates come via WhatsApp messages from friends and family: “There was a gun battle on X street”, “They found a body in Y neighbourhood”, “Avoid Z”.

Read more at The Guardian.