Myanmar has declared a week of national mourning following a devastating earthquake that has claimed more than 2,000 lives. With hopes fading for survivors trapped under the rubble, rescue operations are slowing down in the worst-affected areas.The ruling junta announced on Monday that national flags would be flown at half-mast until April 6 "in sympathy for the loss of life and damages" caused by Friday's massive 7.7-magnitude quake.Rescue Efforts Wane in Hard-Hit MandalayMandalay, Myanmar’s second-largest city with a population of 1.7 million, has been among the most severely affected areas. Rescue efforts have lost momentum as the sheer scale of destruction overwhelms emergency services."The situation is so dire that it’s hard to put into words," said Aung Myint Hussein, chief admin...