U.S. officials are adopting a long delayed rule aimed at reducing deaths and environmental damage from oil and gas pipeline ruptures.

CNN video(CNN) - Police are investigating reports of a shooting at a shopping mall in San Bruno, California. A heavy police presence was seen at the Tanforan Mall on Tuesday after reports of a shooting in the area. "Please stay out of the Tanforan area - San Bruno Police Department is on scene investigating a shooting. Dozens of people who were inside the mall evacuated the building. "I was in the bookstore and heard an evacuation and ran out in the mall, heard shots and left immediately," Irving Schulman told CNN.