Most people have their route to work memorized; they can do it with their eyes closed. Heading into the office is some combination of elevators — stairs if you're more ambitious — and hallways. Easy.
Tom Keller's route is a bit more complicated.
"Step here, and there's a bad railing right here with a step," Keller cautions, threading his way up along a series of dimly lit, narrow catwalks suspended above the football field inside the New Orleans Superdome.
The stadium is home to the New Orleans Saints and will host this year's Super Bowl.
Radio Liberty was founded in the 1950s to broadcast American views into the former Soviet Union when the Cold War was at its peak. Radio Liberty transmitted on short wave, and the Soviet government did all it could to jam the broadcasts.
But after the fall of the Soviet Union, Russian President Boris Yeltsin granted the service permission to open a Moscow bureau and broadcast within the country on AM radio.
All this week, we've been examining the world's last remaining pockets of polio, a disease for which there is no cure. India marked a milestone when the World Health Organization struck it from the list of polio-endemic countries in February after no new cases were reported for more than a year. From Delhi, NPR's Julie McCarthy reports on how, despite poverty and poor sanitation, the world's second-most populous country is eradicating the disease.
Treatment for Alzheimer's probably needs to begin years or even decades before symptoms of the disease start to appear, scientists reported at this week's Society for Neuroscience meeting in New Orleans.
"By the time an Alzheimer's patient is diagnosed even with mild or moderate Alzheimer's there is very, very extensive neuron death," said John Morrison of Mount Sinai Medical School in New York. "And the neurons that die are precisely those neurons that allow you to navigate the world and make sense of the world."
A man has been arrested in an alleged terror plot to blow up the Federal Reserve building in New York City. Federal authorities and the New York Police Department collaborated to foil the plot apparently conceived by a Bangladeshi man, Quazi Mohammd Rezwanul Ahsan Nafis. Nafis is said to have conceived the plot. However, authorities learned of the plot and actually provided what appeared to be the bomb. It was inert and there was no threat to the public.