Guardian: No words, even those uttered in Churchillian tones from the Oval Office, can compete with the live feed of oil gushing in ever bigger quantities into the Gulf of Mexico. For 57 days. The American people want to know just two things: when is it going to stop and who is to blame. President Barack Obama could not answer the first in his address to the nation on Tuesday night and the real answer to the second is a lot more uncomfortable than any of his viewers are willing to admit. To get …