Guardian: You’d think that someone whose job is on the line might choose his language more carefully. Tony Hayward, the beleaguered chief executive of oil giant BP, has claimed the company’s oil spill in the Gulf of Mexico is "relatively tiny" compared with the "very big ocean". However, earlier this week he sounded less sanguine when he admitted that the leak is being fought on three fronts: beneath the surface, on the surface and on the shore. At the "subsea" level, he said, this was …