The most disastrous citywide surveillance system is likely from New Orleans. After spending more than $10 million, it resulted in criminal charges and convictions .... unfortunately against the people involved in deploying it [link no longer available]. Now, it exists as a zombie, offline but still consuming tens of thousands in electrical costs [link no longer available].
At the same time, an online surveillance retailer has quietly built a 500+ all HD city system in New Orleans at 90 percent less than the original city system cost. What's the catch and tradeoffs?