National Public Radio: NEAL CONAN, host: This is TALK OF THE NATION. Im Neal Conan in Washington. BP claimed today that a mile-long hose siphons 5,000 barrels of oil every day from the massive leak in the Gulf of Mexico, which is about the size of the leak, according to a recent BP estimate. Independent analysts believe the leak could be as much as 20 times bigger than that. Large swaths of the Gulf have been closed to fishing, a thick blanket of oil has begun to wash into marshes and onto …