As far as I ever knew when I lived in DC (15+ years ago), every single acre of Prince George's County inside the Beltway was a no-go zone. All of it. And for the most part, I kept my fat happy white ass out of it, except when I had to go there for something (which was rare). I had hoped it had gotten better.
I was visiting friends over the weekend down around Blacksburg, and one of them had come down from the DC area...she lives in PGC, Brentwood, I think. 35ish single white female professional, who (I think) lives alone up there. She's crazy, and she knows it, but she couldn't afford anywhere else.
}:-)4
If she and the many other good people of all races could legally defend themselves, the crime problem would melt away.
It did not use to be like that. From the late 80's on, PGC has gotten progressively worse. I remember when I came back from Hawaii in 93 - the schools were advertising for teachers - offering 20 grand signing bonus's. I told my wife - hell, that's either hazardous duty pay or combat pay. For the most part, it is a friggin' war zone.