One of my life's great regrets is that I can't for the life of me imitate the Baltimore accent. And I love the Baltimore accent. Well, I'm not the only one who has trouble with those sounds that go from DC to Philly. This is actually about the Philly accent, but a lot of it applies to Baltimore, too.
Plus, the author, Arika Okrent, I went to high school with her. And she's as cool as any Klingon speaker you've ever met!