Tens of thousands of refugees remain in New Orleans–four days after Hurricane Katrina devastated the Gulf Coast region. On Thursday New Orleans Mayor Ray Nagin sent a desperate SOS to the country for more aid. The city is admitting that some survivors have not eaten or had water in three or four days. Corpses are floating in the floodwater. Thousands of people across the country are searching for relatives and friends — not knowing if they have survived the catastrophoe Nearly 2 million people remain without power. The Coast Guard reports there are still many residents stuck on their roofs seeking to be rescued. Officials fear thousands may be dead. The banner headline in this morning’s Time-Picayune newspaper reads “Help Us, Please.”