Description: A giant funnel to be installed at the scene of last month's devastating explosion off the US coast, is BP's best hope of halting the oil spill in the Gulf of Mexico. The device, designed to channel oil from the seabed to the surface where it can be collected safely, will be set up on Thursday. However, with the energy company itself not sure it will even work, Russian experts suggest that a radical solution from Soviet history may be a way out.