Tue Jan 4, 2:41 PM ET
AP
In this photo released by the Indian Coast Guard, a Sentinel tribal man aims with his bow and arrow at an Indian Coast Guard helicopter as it flies over their island for survey in Indias Andaman and Nicobar archipelago, Tuesday, Dec, 28, 2004. From circumstantial evidence, officials say fate and the ancient knowledge of secret signals in the wind and sea have combined to save the five indigenous tribes living for centuries in the southern archipelago of Andaman and Nicobar from the catastrophic tsunami that lashed Asian coastlines last week. But the fate of the tribes _ on the verge of extinction _ will be known with certainty only after officials complete a survey of their remote islands beginning Wednesday. (AP Photo/Indian Coast Guard, HO)