A quirky publicity campaign for a late-night cartoon show generated far more attention than was intended when a slew of blinking electronic signs prompted fears of terrorism and the deployment of bomb squads. The 38 signs were part of a promotion for the Cartoon Network TV show "Aqua Teen Hunger Force," a surreal series about a talking milkshake, a box of fries and a meatball. The 1-foot (30-centimeter)-tall signs adorning bridges and other high-profile spots had hanging wires and batteries. Most depicted a boxy, cartoon character giving passersby the finger - a more obvious sight when darkness fell. Turner Broadcasting, a division of Time Warner Inc. and parent of Cartoon Network, apologized, but Boston authorities are still angry. They arrested two men who put up the electronic promotions and vowed to hold Turner accountable for what Mayor Thomas Menino said was "corporate greed," that led to at least US$500,000 (â‚¬385,000) in police costs.