A beautiful map is a beautiful thing. And, once upon a time, a nice looking map with data on it was a sign that some dedicated organization had paid a lot of money to create it. Nowadays, that isn't the case. With a few data points and a little code from Google, you can create your own Google Maps mash-ups.
It should come as no surprise that somebody has illustrated this with the web site Felon Spy, a site that advertises itself as showing you the locations of dangerous people in your neighborhood. In truth, it's a ruse. Randomly generated "perps" are placed on the maps near whatever address you choose.
As with PhotoShop and photographic "evidence", these mash-ups should give the public pause when looking at maps online.