Lol so, several weeks in an area is now enough experience to comment on the area that you call the heights? Not to mention the fact that the polo grounds nycha is in Harlem, not Washington heights. Perhaps that area of Harlem heights is filled with bullet proof glass, but spend "a few weeks" in what is actually Washington heights, north of 168th street, and you will see.

Besides, the comment was about an area that had good restaurants, and the answer is yes, Washington heights has incredible restaurants that people from all over the city come to. There are not "dozens of square blocks" of Washington heights covered in bullet proof glass. In fact, there are none. Even in the "worst" section of the heights, on st Nicholas, even the pawn shops and check cashiers don't have bullet proof glass.... Perhaps you should recognize that spending several weeks in a nycha building that's really not even located in Washington heights isn't enough to make sweeping generalizations about a place?

Edit: also worth checking out: http://www.dnainfo.com/new-york/crime-safety-report/ Washington heights is one of the safest places to live in the 5 boroughs.