London Starts Digging Massive Tunnels For Transport

Forty years after it was first proposed, digging has begun on a major new railway link under central London. Two giant earth-eaters are nibbling away at the ground making tunnels that eventually will connect mainline train services across the city. Guest host Jacki Lyden talks with NPR's Philip Reeves in London about Europe's biggest civil engineering project.

sere course army airborne school requirements combatives training