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Strengthening Buildings In Tornado Alley

Scenes of destroyed homes and businesses were common following the recent Oklahoma tornadoes. David Prevatt, a structural engineer at the University of Florida, says that improving resistance to tornadoes will require better building materials and techniques, plus a strong dose of political will.

Justin Bieber Aims For Outer Space

Singer Justin Bieber is the latest celebrity to score a booking on Virgin Galactic's SpaceShipTwo, destined for its first suborbital test flight sometime this year. He had to put down $250,000.

Justin Bieber Destined For Outer Space

The pop star has booked a seat on Virgin Galactic's SpaceShipTwo, following in the footsteps of fellow celebrities Ashton Kutcher, Leonardo DiCaprio and Angelina Jolie.

When You Waste Food, You're Wasting Tons Of Water, Too

Some 45 trillion gallons of water are lost each year with all of the food that's thrown out around the world, according to a report from the World Resources Institute. This represents a staggering 24 percent of all water used for agriculture.

Mysterious Blob Hovers Over Local Ala. Weather Radar

Audie Cornish talks to atmospheric science professor Kevin Knupp from the University of Alabama, Huntsville, about an unusual blob that hovered on the local weather radar for nine hours earlier this week.

Who Belongs To Which List?: Debate Over Organ Allocation

A judge's ruling puts a 10-year-old girl on the transplant waiting list for adult lungs, setting off an ethical debate over organ allocation.