PBS: A Week Later, Yellowstone Spill Answers Scarce

High water that may not subside for three weeks is preventing investigators from determining what caused the 42,000-gallon oil spill that contaminated the Yellowstone River near Laurel, Montana, last week.  In his report yesterday, PBS NewsHour correspondent Tom Bearden summarized the situation and noted that “some environmentalists say this accident is exhibit-A to bolster their opposition to a much larger planned pipeline to run from Canada’s vast oil fields to Houston. That line would also cross the Yellowstone and other rivers.”