NPR News

Robert Siegel speaks with Harper Reed, who was chief technology officer for the Obama reelection campaign, about the strategies they employed to mobilize volunteers and reach voters.

The downfall of CIA Director David Petraeus appears to have grown out of jealousy. He had been having an affair with his biographer, Paula Broadwell, and she allegedly sent harassing emails to a woman in Florida she thought was too close to Petraeus. Now the discussion is turning to what people knew and when they knew it and why this explosive story came out just days after the election. Audie Cornish talks to Dina Temple-Raston.

Titan, the new supercomputer at the Oak Ridge National Laboratory in Tennessee, has been crowned the fastest in the world. It can clock 17.59 petaflops (quadrillions of calculations per second). Audie Cornish talks to Steve Henn for more.

New York Governor Andrew Cuomo is seeking $30 billion in federal disaster aid to help the state recover from Superstorm Sandy. Robert Siegel talks to Joel Rose.

The Greek government passed a 2013 budget on Monday that includes more spending cuts and tax hikes. But European leaders, while welcoming the move, won't give Greece its latest loan fix for now because of the country's rising debt. More than two years after Greece adopted a punishing austerity regimen in exchange for bailout loans, the country remains deeply in debt and addicted to loans.