Katrina's wrecks now Bolivia's headache  Cars flooded in
Hurricane Katrina are gathered and stored beneath a freeway.
Tess Vigeland: Today in New Orleans, four of the presidential
candidates were attending a "Recovery Summit." Wednesday marks
the second anniversary of Hurricane Katrina.  One of the many,
many indelible images of the disaster was all those cars and
trucks tossed around by the storm. Sometimes deposited on
rooftops, or atop a telephone pole. Some of those cars ended up
in the unlikeliest of places: Bolivia.  They're sold on the
cheap and look almost new on the outside, but many of these so-
called "Katrina cars" aren't exactly the bargain they seem.
Ruxandra Guidi has more from La Paz.  Ruxandra Guidi: About 40
minutes from the Bolivian capital of La Paz is the sprawling
slum of El Alto. In the local market there, you're likely to
come across hundreds of used cars.  The cars are spread out in
the middle of the streets over 20 city blocks. Salesmen stand
beside them for hours, ready to answer q