[GretchenM]

"WE SHUT DOWN THE BRIDGE" [trapping evacuees inside New Orleans] [John Podhoretz] National Review Online September 9, 2005
"UPI ["Cops Trapped Survivors in New Orleans"] has the police chief of Gretna, Louisiana, admitting that he closed off one of the major arteries out of New Orleans on Monday, before the storm hit." / end excerpt

[Miss Marple]

Thanks, Gretchen! I particularly appreciate the documentation on the police keeping people IN New Orleans.