When a grenade shredded his legs during a hostage rescue mission in Gaza, Israeli soldier Barak tried to shoot himself to avoid being taken captive by Palestinian militants. But it's the sound of the grenade exploding that haunts him months later. "This white light and big explosion, you hear it, you smell it, you know, with the lead and everything ... It's just something that was very traumatic," he recounts from his hospital room where he's been receiving treatment for more than seven months. IMAGES AND SOUNDBITES ARRANGED IN SEQUENCES