By Dan Bobkoff
http://stream.publicbroadcasting.net/production/mp3/wamc/local-wamc-520186.mp3
Boston, MA – The investigation continues into the structural failure that sent a concrete slab falling onto a car and killing a woman in a section of Boston's long-troubled , nearly 15 billion dollar Big Dig tunnel and highway project. Now, there are criminal probes and a calls for accountability. An update from WAMC's Pioneer Valley Bureau Chief Dan Bobkoff.