Copyrighted Image? DMCA | TransCanada Corp. has temporarily shut down its existing 2,100-mile Keystone pipeline after tests showed possible safety issues, a federal agency said Thursday. Jeannie Layson, spokeswoman for the Pipeline and Hazardous Materials Safety Administration, which oversees pipelines in the U.S., said no leaks were detected on the line, which moves on average about 500,000 barrels of crude a day from Alberta, Canada, down through several states to facilities Illinois and Oklahoma. |