Journalists bear invisible scars of Mexico's drug war = REFILE WITH THE CORRECT NAME OF JOURNALIST ALEJANDRO ORTIZ = Many Mexican crime reporters suffer from Post-Traumatic Stress Disorder, or PTSD, as they face harrowing risks to cover the bloody wars between Mexico's rival cartels and the army, which have left a trail of tens of thousands of mangled bodies and hundreds of mass graves in their wake. IMAGES AND SOUNDBITES