Reince Priebus says it is not his role to referee ongoing fights between Donald Trump and Ted Cruz. He also rejects the idea that Trump will affect the party's chances of winning a general election.
The Justice Department wants Apple to help investigators get around iPhone security features so that the FBI can access data belonging to one of the San Bernardino killers. Apple is firmly opposed.
Sarah Parcak uses satellite imagery to identify hidden sites. The winner of the 2016 TED Prize now plans to invite everyone to help her locate historical treasures.
A man's testosterone level drops as he ages, but boosting it with supplements has been controversial. The first year of data from a big study now suggests a modest boost in libido for some men.
NPR's Robert Siegel interviews Reince Priebus, chairman of the Republican National Committee, about what the primaries say about the party compared to 2012.
Apple says it will oppose a federal court order to assist the Justice Department in unlocking an iPhone used by one of two attackers who killed 14 office workers in San Bernardino, Calif.
After reports last year showed that auditors had easily smuggled fake explosives through security checkpoints, TSA has stepped up training for new hires.
A top education analyst says the U.S. probably could get some more people through college by footing the bill, and it would probably pay for itself. But it isn't an open-and-shut case.