Nearly half of the 7,000 languages spoken in the world are expected to vanish in the next 100 years. One of them is Athabaskan, a language of the Siletz tribe in the Pacific Northwest. Bud Lane, vice chairman of Siletz tribal council, explains the importance of language diversity.

Administration officials defended the government's surveillance programs before the the Permanent Select Committee on Intelligence today.

Singer Cécile McLorin Salvant was born in Miami to French and Haitian parents, and started singing jazz while living in Paris. Back in the U.S., she won the Thelonious Monk vocal competition in 2010. The 23-year-old's first album, WomanChild, is now out — and few jazz debuts by singers or instrumentalists make this big a splash.

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JOHN DONVAN, HOST:

Last January, Noelle Murphy and her family were on their way to the Please Touch Museum for children in Philadelphia. Right before they arrived, 3-year-old Dylan had an accident.

"He wet himself," Murphy said, "And we were thinking, 'Oh no, how are we going to deal with this?' "

They are young, they are angry and they have drawn inspiration from protest movements a world away in places like Turkey and the Middle East.

Tens of thousands of Brazilians took to the streets across the country Monday night, and more demonstrations are slated for the coming week. Brazil doesn't have a history of this kind of mass dissent, but it seems to be catching on very quickly.

Hundreds of pages of transcribed interviews reveal that IRS employees in Washington were involved at an early stage in the improper targeting of Tea Party groups — but at least so far the trail stops well short of the White House.

Based on interviews with two longtime IRS employees working in the Cincinnati field office, there's no smoking gun, no direct connection to the Obama administration or even any indication that those involved in the flagging of conservative groups had political motives.

The Boston Bruins have taken the lead in the NHL's Stanley Cup championships, beating the Chicago Blackhawks 2-0 Monday night in Boston. Interestingly, last night wasn't a tense, drawn-out reprise of Games 1 and 2 and did not require an overtime.