Police forces around the globe are depending more and more on CCTV to solve crimes and catch criminals. In the case of the Boston Marathon bombings, which killed 3 people and injured a hundred others, police went through hundreds of hours of video footage to identify the two terrorists, who planted the bombs.
However not all Americans are in favor of more video surveillance. In a recent poll, only about 40% of those asked said they wanted more TV cameras in public places.
Currently police rely not only on public TV cameras but also on private cameras that have been installed by businesses and other private citizens over the past few years. Together they guarantee that big cities are constantly observed and police can concentrate on crime hot spots. With video technology becoming cheaper, more and more people are having video surveillance installed.