Interview: Tom Reilly

Attorney General Tom Reilly is carrying out a separate investigation into the Big Dig tunnel accident. And it could include manslaughter charges related to the death of Melina Del Valle, who died after cement slabs crushed her car in the I-90 connector tunnel Monday night.

Now Reilly has announced a preliminary finding that officials knew about problems with the anchor bolts in that tunnel as far back as 1999.

Bob Oakes speaks with the attorney general.