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On Thursday, the Mexican Navy triumphantly presented a man it said was the son of drug kingpin Joaquin "El Chapo" Guzman. Today, both Mexican and U.S. authorities are pointing at each other for misidentifying the man who was captured.

The man's name is Felix Beltran Leon, 23, a car salesman, and not Jesus Alfredo Guzman Salazar, the Mexican Attorney General's Office confirmed on Friday, saying "necessary tests" had proved he wasn't the drug lord's son.

When legendary TV producer Norman Lear was young, his father gave him a do-it-yourself radio kit. Lear built it, turned it on and remembers one day hearing a fiery broadcast that spoke kindly of the Nazi movement and ranted against Jews.

"It scared the hell out of me," Lear, who is Jewish, tells weekends on All Things Considered host Guy Raz. "It was the first time that I learned that I was, quote, 'different.' I started to pay a lot more attention to people who were even more different."

In many places across the country, summer officially blasted in this week, which means that musicians who've wintered in dark rehearsal studios — and the street players who've been toiling away in cold and damp subway corridors — can now enjoy playing alfresco.

This summer, Weekend Edition is presenting audio postcards from musicians out-of-doors.

This installment comes from a group of bluegrass players who gather every couple of weeks at Lyon Park in Arlington, Va. They're members of the Capitol Area Bluegrass and Old-time Music Association, or CABOMA.