At about 5:30 p.m. on Monday, two washing machine-sized space probes crashed into the surface of the moon. It was all by design and marked the end of NASA's GRAIL mission. The two probes had been orbiting the moon for almost a year, and they've sent back data that have given scientists an unprecedented look inside our nearest solar system neighbor.
California Senator Dianne Feinstein, reacting to the shooting deaths in Newtown, Connecticut, called yesterday for reinstating the Assault Weapon Ban, which was in effect from 1994 until 2004 when the law expired. How effective was it?
Well, we're going to ask Professor Daniel Webster who studies firearm policy and gun violence prevention. His field is public health, and he's at Johns Hopkins University. Dr. Webster, welcome to the program.
Discussions here in Washington are intensifying between House Speaker John Boehner and President Obama as they try to find an agreement to avert a raft of year-end spending cuts and tax increases. The two men met today at the White House for 45 minutes. NPR's Tamara Keith joins us now from Capitol Hill with an update. And, Tamara, there does seem to have been something of a breakthrough in negotiations. Speaker Boehner agreed to let tax rates rise. President Obama came back with a counteroffer. Where are we right now?
That weapon that David just mentioned, the AR-15, was not only used in last Friday's school shooting. It was also used this month by a gunman who killed shoppers at a mall in Oregon. And it was used back in July in the attack on a movie theater in Aurora, Colorado. The semiautomatic AR-15 is essentially a civilian version of the military's M-16. And it is, according to the NRA, the country's best-selling firearm.