stilgherrian, technology reporter, speaking to rico of little earlier.ating breakfast right now because what i am about to tell you is rather disgusting. specialist teams are trying to remove what's called a fatberg, an enormous solid blob of oil, fat, cosmetic wipes and diapers, blocking an huge length of sewer underneith my feet right here in london. 0ur science editor david shukman reports. in east london this morning, chris casbolt embarks on one of the worstjobs in the world. he checks a sensor that will detect toxic gases. he's given a constant supply of fresh air. this is what's needed to fight what's called a fatberg down in a sewer. we give chris and a colleague cameras to capture what they're facing. are you 0k? yeah, i'm good. i asked to join them, but wasn't allowed. they're venturing into extremely dangerous territory. i need a hose. hose! they arrive in an alien and hostile world. a supervisor calls out to check the gas. what's the gas reading down there? inaudible. in the hot, fetid air, the fat releases fumes of sulphur. this narrow tunne