London train bombings.... as Hari KM above say so called 4,200,000 cctv active and continiously monitored. What they got.... damage of life and property. Yes.. they got the pictures of 'suspects' which later helped the agencies in identifying them from the dead bodies(not surely). Now the londoneers are developing some science gadget which will take pictures and identify with the suspect database(trillions). In the mean time the suspect will blast himself in public place. You can take pictures but can't say which guy will do the blast. Who knows the guy wearing a armani is a sucide bomber wearing explosive under his pants.
