Been questioning the value of having omnipresent surveillance cameras tracking your every move? Well, if you're an outlaw, you still won't like them, but for the rest of us law-abiding types, London's Metropolitan Police has a comforting stat to share: almost six crimes a day are being resolved with the help of CCTV footage. It's being used primarily to aid the identification of perps on the run, and the number of suspects identified as a result has gone up to 2,512 this year. There is a bright light for criminals, however, as the Met admits digital recordings aren't kept around as long as VHS ones used to be, meaning that if you slip the dragnet once, you'll probably be alright. So good news for everyone!