Commuters and shoppers face disruption from tube driver strikes in run-up to Christmas

RMT union calls eight 24-hour strikes on London Underground in opposition to plans for four-day weekTube train drivers in the RMT union have called eight 24-hour strikes running over 16 days – including six in the lead-up to Christmas – that threaten to bring transport chaos to the capital.The drivers will start another series of 24-hour strikes in late November…