NEW ORLEANS (Reuters) - Army engineers raced to staunch rising floodwaters submerging historic New Orleans as helicopters plucked frantic survivors from rooftops and hundreds were feared dead on Tuesday after Hurricane Katrina tore across the U.S. Gulf Coast.
Authorities made plans to remove thousands of storm refugees from the Superdome stadium and other shelters in New Orleans and forged a bold scheme to airdrop giant sandbags to plug breaches in the city's protective levee system as water from Lake Pontchartrain poured into the city.