The Coast Guard has declared a 500-yard safety zone to keep people away from two drilling ships when they leave Seattle for the Alaska Arctic this summer. Shell Oil has been preparing two drill ships in Seattle to explore for oil and natural gas this year in the Beaufort and Chukchi seas off Alaska’s north coast. Environmental groups oppose the drilling because they fear an oil spill in ice-choked ocean waters. http://www.adn.com/2012/06/22/2515670/coast-guard-declares-safety-zone.html