Ian O'Doherty: Well, he's a hardliner. . .
Relations between America and Britain have been strained almost to breaking point by the BP oil spill.
But the biggest ever environmental disaster in the US has enabled the increasingly beleaguered Obama to prove to his growing number of critics that he's not a weakling. So he's been taking an increasingly hard line against BP executives.
And he's got a lot of starry support. One actor who has been extremely vocal on the matter is Brad Pitt.