by Gokan GUNES with Hélène COLLIOPOULOU in Athens Agence France Presse ISTANBUL, Turkey (AFP) — Rescuers dug through heavy blocks of concrete with their bare hands on Friday in a desperate search for survivors from a powerful earthquake that levelled buildings across Greece and Turkey, killing at least 14 people. The quake caused a mini-tsunami on the Aegean island of Samos and a sea surge that turned streets into rushing rivers in one town […]