>With regard to the article, why is it obvious that police are putting surveillance in areas with the highest rates of gun crime?
Because there are nicer neighborhoods and less than nice neighborhoods? In so far as I can tell this is true to various degrees in every place I've ever lived or visited. Colloquially, some neighborhoods have manicured lawns, other neighborhoods have cars on blocks - it's 'obvious'[0] that the latter warrants more policing.
[0]The truth of it is arguable, perhaps, but it is very obvious.
Because there are nicer neighborhoods and less than nice neighborhoods? In so far as I can tell this is true to various degrees in every place I've ever lived or visited. Colloquially, some neighborhoods have manicured lawns, other neighborhoods have cars on blocks - it's 'obvious'[0] that the latter warrants more policing.
[0]The truth of it is arguable, perhaps, but it is very obvious.