Amateur footage can bring mixed blessings

THE eerie footage captured deep underground by a Tube passenger with a mobile phone has already become one of the more enduring images of the London bombings.

Stunned survivors moved almost like sleepwalkers, stalked by smoke and shadows and bathed in a ghostly green light as they made their way towards fresh air and the distant exit.

Although the footage, taken by actress Liza Pulman on a camera phone with video capacity, was short in duration and of limited quality, it portrayed the surreality of the aftermath of disaster more vividly than professional camera crews arriving to film after the event.