The transit agency is encouraging such vigilance and says it's ready to respond. It has its own bomb experts to handle the roughly two bomb threats received a month, Dunham said. Those experts have a remote control robot to collect suspicious packages and a safe chamber -- a pickup truck-sized sphere that looks like a giant, black witch's cauldron -- to transport them to a place where they can be destroyed.
The bomb equipment, and the team of 16 bomb-sniffing K9 dogs together with vehicles, housing and everything else needed for the animals, was provided by the TSA. The federal agency has given MARTA $25 million in anti-terror equipment and training since 2006.