Looting vs. Flooding

A question that roams the balsa mind: If so much of New Orleans was flooded, how was it possible for so much looting to go on? The percentage that sticks in my mind is 80% of the city went under water, though I could be confusing that with the percentage of the state of Mississippi that lost its power. Did the looters use rowboats, and what did they do with the stuff? Filled up the Superdome?

"Just trying to get the facts, m'am."