It’s possible there is another oil leak in the Gulf, though it’s already being denied.  What we know for sure is that oil drilling in the Gulf remains dangerous to human and wildlife health.  A separately-reported  4-6 hour oil leak did happen last week during the plugging of an oil well — something authorities seem to believe is OK. “The Wall Street Journal and several other sources are reporting that the Coast Guard is investigating a 100-mile sheen of a substance that may be oil floating on the surface of the Gulf of Mexico. Reports began to come in on Saturday morning of a rainbow slick that began off the coast of Grand Isle, Louisiana and extended far out to sea. Crews have been have been sent to the area to assess the situation, which is unfolding about twenty miles from the site of the Deepwater Horizon, the well that exploded last April and set in motion a disastrous chain of events whose full impact has yet to be measured. A report from Business Insider released after 10:00pm EDT on Saturday indicated that the well involved might be the Matterhorn Seastar, but other sources state that it is too early [...]