AUDIE CORNISH, host: This is WEEKEND EDITION from NPR News. I'm Audie Cornish.
The Martin Luther King Jr. Memorial on the National Mall is being dedicated today in Washington. In August, Hurricane Irene forced the delay of the dedication. The ceremony was originally scheduled to coincided with the 48th anniversary of King's famous "I Have A Dream" Speech. Well, Dr. King is best-known for championing civil rights. Toward the end of his life and he focused his attention on fighting poverty.
Speculators in the agricultural commodities markets are forcing grocery prices to rise too quickly and erratically, according to some top economists marking World Food Day on Sunday.
"Excessive financial speculation is contributing to increasing volatility and record food prices, exacerbating global hunger and poverty," wrote 461 economists, from more than 40 countries, in an open letter.
American composer Steve Reich turned 75 this week. The so-called "minimalist" credits jazz, African drumming and Balinese gamelan for inspiring his signature style. His music, from experimental tape loops to the Pulitzer Prize-winning "Double Sextet," has inspired the generations of composers who followed.
In the early 1960s, when Reich was beginning his composition career, the contemporary classical music scene was dominated by atonal music like the works of Pierre Boulez.
"It fell to my generation to basically say, 'Basta! Enough!' " Reich says.
On Labor Day weekend a bustling sea of music fans in their late teens and early 20s were stuffed onto a grassy, open field in New York. One of them stood out, dancing in a sweat-drenched black T-shirt that read, "Sex, drugs and dubstep."