Russia's Duma approves law allowing banks to install jamming systems and authorize staff to shoot down drones. Banks bear costs for installing jamming systems. Ukrainian drones have disrupted supply lines and held back troops. Moscow expands air defense despite banks not historically being targets. The law applies to central bank and Sberbank. Anatoly Aksakov says jamming makes it harder for drones to target. Implementation has sparse details, raising execution concerns. Mobilizing bank staff could undermine Putin's visibility efforts. Bill requires Federation Council and presidential approval