SAN FRANCISCO — A 100-yard safety zone has been established around an America’s Cup Team Artemis vessel that capsized in San Francisco Bay today. Watchstanders at the Coast Guard Sector San Francisco command center were notified at approximately 1:00 p.m. of the vessel capsizing near Treasure Island while practicing. The Artemis 72, a Swedish-flagged vessel, had 12 people aboard when it capsized....