[Eala]

All they have to do is conceal the shot from a sound and site perspective ... which they appear to be doing quite well.

I've stayed in Gaitherburg a number of times. The population density is pretty high and yet you can easily get the covering advantage of distance. But my thinking was more towards NYC; concealing the shot (audibly and visually) could be more of a problem there. (Then again, perhaps it's so noisy there...)

[Jeff Head]

Then again, perhaps it's so noisy there...

Exactly.