Alarmed union bosses have called on the Bank of England to step in and avert a looming cash crisis. Almost 1,500 cash handlers working for G4S and Loomis are set to strike in a bitter dispute over pay freezes. This has sparked fears that ATMs will run out of cash and airports will be left with no foreign currency - with the most vulnerable being worst at risk if criminals launch cyberattacks. Trade union GMB has warned it comes at a time when cash handling and transport workers face a growing