What's so special about Fitchburg and Leominster?

Aaron Weber adds real estate to the list of things he can't expect the Globe to cover well, after reading a piece in the Sunday real-estate section about foreclosures in the two cities, which is accompanied by a large map that shows the problem is far, far worse in another city:

... In Lawrence, the foreclosure rate is nearly double that of even the most hard-hit areas in the Route 2 West corridor. You want to write about a housing crisis, and you ignore Lawrence? Is that more of a Herald town or something? ...

He also uses the Globe's own stats to ponder why the story didn't examine the possibility that the relatively high foreclosure rates in northern Worcester were due to fraud rather than a financial crisis.