Telegraph: Covered in white tarpaulin tents, Winnebagos and makeshift offices, with a smattering of houseboats moored alongside, docks 51 and 52 at the Mississippi Delta deep water port are home to one of BP’s 14 staging areas across the four main Gulf states, the first line of defence against the oil major’s Gulf of Mexico spill. Slade Brockett is staging area manager at the Venice outpost. It is at the front of BP’s attempts to deal with the oil leak, given that it is closest to the site of …