KOS, Greece (AP) — A powerful earthquake shook beach resorts Friday in Greece and Turkey, killing two tourists crushed when a building collapsed on a bar in the Greek island of Kos and injuring nearly 500 others across the Aegean Sea region. Only a few miles apart, Kos and the Turkish resort of Bodrum were hit hours before dawn by the shallow undersea quake that caused a two-foot (0.6-meter) sea swell and havoc among residents and thousands of vacationers at bars and restaurants. The U.S.