and now a massive oil spill that many people have never even heard of. i didn't. even though it has been lurking underneath a new york city neighborhood for more than 100 years. some people living on top of it is saying that the cleanup is taking far too long and they have paid a serious price. senior correspondent allan chernoff is in new york and working the story for us. what going on? >> well, wolf, it is a giant underground oil plume extending into a residential neighborhood in green point, brooklyn. at some points, it is three feet underground, and at others, it is as much as 50 feet below. it is not easy to extract, but the cleanup is going on for three decades and the residents complain that their health is at risk. >> reporter: on this block of diamond street in brooklyn's green point neighborhood, cancer