 According to Iztalapalpa officials, vendors at the El Salado tianguis set up shop as early as 4 or 5 am in order to receive stolen and other merchandise from trucks behind the Unidad Habitacional Concordia Zaragaza housing complex, and use radios to communicate and watch out for authorities Officials claim there are at least ten places in the market that sell drugs and two that sell guns.Much of the allegedly stolen merchandise consists of computer equipment and handheld gadgets such as iPods.The sale of stolen merchandise such as this is popular because it can cost about half of what it does in legal channels.