NEW : He also says U.S. will receive full compensation for all damages from BP . ` ` Top - hat '' ' device reaches West Coast . New device would allow engineers to pump in methanol and prevent ice from forming . Interior secretary : Success of latest attempt could be expected in next few days .
NEW : Obama also says U.S. will seek full compensation for all damages from BP . `` Top-hat '' containment device reaches Gulf floor . New device would allow engineers to pump in methanol and keep hydrates from forming . Interior secretary : Success of latest attempt could be known in next few days .