New Orleans, La. – Mayor Nagin attended several memorial events, starting with a bell-ringing ceremony to remember the more than 18-hundred people killed by Katrina. But he also promoted an outdoor festival at Armstrong Park to celebrate progress that's been made.
He says the city is moving ahead.
Nagin says the city estimates the population is now about 80 percent of pre-Katrina numbers. He says the biggest challenges are the fight against crime and blight, and inadequate mental health services and general health care.