The monthly employment report Friday could help answer a key question about the economy: Will the recently strong job growth slow once employers finish replacing the people they fired during the depths of the recession?

The prosecutor investigating the shooting of Trayvon Martin in Sanford, Fla., has not yet decided if she will bring charges against the shooter, George Zimmerman.

It took several weeks for the Feb. 26 shooting to draw the nation's attention — after Benjamin Crump, the attorney for Trayvon Martin's family, launched a campaign to get the case before media and civil rights activists nationwide.

Two days after the shooting, the high-profile civil rights attorney started getting calls about the case. "My phone was buzzing," Crump says.

On this seventh segment of the Latin Roots series, Josh Norek joins World Cafe to explore the cultural roots of Latin funk — a mix of Latin grooves and Afro-American funk. Norek is the co-host and executive producer of The Latin Alternative, as well as a musician, producer and journalist who currently works for the Latin indie label Nacional Records.

John K. Samson, known for his eloquent lyrics and tenure as the frontman of Canadian indie-rock band The Weakerthans, just released his first solo album. Three years in the making, Provincial arose out of Samson's stated wish to capture the feel — a "musical map" — of three locations in his native Winnipeg.

A Russian computer security firm says it has discovered that about 600,000 Apple computers have been infected with a "Flashback Trojan" virus.

Now, before we move on, you should know that the company making the announcement is Dr. Web, which sells anti-virus software that will protect a computer against that kind of virus. It's also important to note that many of the parties weighing in are part of a security community that makes money off selling anti-virus software.

Tonight, in Whitesville, W.Va., mourners will silently walk with candles on sidewalks lined with luminary lights to remember the 29 coal miners who died two years ago today in the nation's worst mine disaster in 40 years.

That memorial will follow a 3 p.m. ET event in Beckley,W. Va., where an honor guard will ring a bell 29 times to mark the moment the Upper Big Branch coal mine erupted in a massive explosion.

Race is central to the debate surrounding Trayvon Martin, the black Florida teen shot by neighborhood watch volunteer, George Zimmerman. Many media outlets first identified Zimmerman as "white," but his father describes him as a Spanish-speaking minority. Host Michel Martin explores the question, "who is white?" with sociologist Jean Halley.

Dennis Walcott oversees a school system with more than one million students. Graduation rates are below the national average, and studies suggest most of the city's high school graduates are not ready for college. But Chancellor Walcott tells host Michel Martin that, after one year on the job, New York City schools are on the mend.