Bob Oakes talks with civil engineering experts and urban planners about the deadly collapse of part of a big dig tunnel this week.
John Christian: Engineering investigator examining the tunnel collapse.
David Luberoff: Rapport Institute for Greater Boston, and author of the book: "Mega-Projects, the Changing Politics of Urban Public Investment."
Reidar Bjorhovde: Civil engineer and president of an international engineering consulting company based in Tuscon, Arizona.
Marshall Hook: Director of MetroNetworks Traffic.
Larry Meehan: Vice President of Media Relations for the Greater Boston Convention and Visitor's Bureau.
This program aired on July 14, 2006. The audio for this program is not available.