The president has sent soldiers and federal agents to some cities, and promised to do the same in others, prompting lawsuits and stirring outrage among local leaders.

© Philip Cheung for The New York Times

Gov. Jeff Landry, a Republican, welcomed news of the potential deployment to New Orleans, a city run by Democrats.

© Annie Flanagan for The New York Times

For many displaced by Hurricane Katrina, distance did not diminish their bond with the city they left behind, even as they built new lives.

© Mike Belleme for The New York Times

The city has taken pride in its ability to endure. But many residents, fed up with dysfunction and soaring costs, want it to strive for more.

© Annie Flanagan for The New York Times

Driving may be faster, but the inaugural train trips between Mobile, Ala., and New Orleans this week drew travelers eager for a different kind of adventure.