Occupy Wall Street tells The Associated Press that a national conference being planned in Philadelphia this summer was not approved by its General Assembly, meaning the group does not endorse it.

The news that some rice-based foods are surprisingly high in arsenic has left rice lovers wondering how the heck we're to know what's safe to eat.

Since Dartmouth College researchers reported last week that a toddler formula and energy bars sweetened with organic brown rice syrup tested high for arsenic, readers of The Salt have had lots of questions about how one might find out the arsenic content of rice-based foods, and figure out what's safe.

Mitt Romney gave a major economic speech Friday, in which he stressed his plan to lower personal income taxes.

Romney's own taxes became an issue last month, when he acknowledged paying a lower tax rate than many middle-class families.

The Oglala Sioux Tribe filed a $500 million lawsuit against brewers and retailers, claiming they're responsible for the reservation's alcohol-related problems. The tribe lives on a dry reservation, but they claim nearby towns unlawfully sell alcohol to residents. Host Michel Martin speaks to a reporter and the tribe's attorney.

A new case taking on affirmative action in higher education is set to be heard in the Supreme Court this fall. In 2003, the court ruled that universities could consider racial diversity in admissions. But today the make-up of the court is very different. Host Michel Martin discusses the case with two law school deans.

After the explosion of the rocket-propelled grenade on a road in Fallujah, Oscar Canon saw the white of his own thigh bone. At the medical unit, the young Marine sergeant grabbed the doctor by his collar and yelled, "Don't cut off my f***ing leg." That was in October of 2004 and the first of dozens of surgeries — 72 separate operations, by a family member's count — that saved his leg.

Last week, Staff Sgt. Oscar Canon, 29, died. A Marine Corps spokesman at Camp Pendleton says the death is still being investigated.

In sophisticated comedy, what's funny is the tension between proper manners and the nasty or sexy subtext. Whereas in low comedy, there are no manners, and the nasty or sexy subtext is right there on the surface.

And then there's Wanderlust, in which the subtext is blasted through megaphones — the characters say so insanely much you want to scream. The satire is as broad as a battleship and equally bombarding. But it takes guts to do a comedy this big without gross-out slapstick, and the writers and the actors are all in.

For patients in nursing homes, treatment with antipsychotic medicines is pretty much routine.

Though the drugs were developed to treat schizophrenia, they're also used to manage the dementia-related behavior of elderly patients. Up to a third of patients in nursing homes get the drugs, despite their risks.

This interview was originally broadcast on Dec. 6, 2011.

In the first part of his career, J. Edgar Hoover was often hailed as a hero. As a young man, he helped reorganize the cataloging system at the Library of Congress. Later on, after Hoover became the first director of the FBI, he introduced fingerprinting and forensic techniques to the crime-fighting agency, and pushed for stronger federal laws to punish criminals who strayed across state lines.

One of science fiction's jobs is to give humanity a map of where we're headed. From Jules Verne to William Gibson, sci-fi authors have described their versions of the future, and how people might live in it.

Those ideas came up in a recent conversation I had with Brian David Johnson, who works for Intel as a futurist — a title that gives him one of the tech world's cooler business cards.