Tokyo digs out from heavy snow, but travel chaos remains, with thousands stuck at airport

The Japanese capital of Tokyo on Tuesday dug out from more than 20cm of snow that had snarled traffic, trapping cars on bridges and in tunnels, and serious transport delays remained around the metropolis.
The snow that began on Monday morning tapered off early on Tuesday after dumping some 23cm on a city that rarely has snow accumulate, with freezing temperatures keeping snow-choked roads slick and pedestrians wary. It was the heaviest snow to hit Tokyo in four years.
Most commuter lines were…