A US Army veteran who served two tours in Afghanistan has been deported to Mexico, US Immigration and Customs Enforcement said. The deportation follows an earlier decision by US authorities to deny Miguel Perez's citizenship application because of a felony drug conviction, despite his service and the PTSD he says it caused. Perez, 39, was escorted across the US-Mexico border from Texas and handed over to Mexican authorities Friday, ICE said in a statement.