The American Federation of Teachers said Thursday that it is cutting its financial ties with Wells Fargo as a result of the banking giant's relationships with the National Rifle Association and gunmakers.

The AFT, a 1.7-million-member national union, is dropping the bank as a recommended mortgage lender, to which it currently channels more than 20,000 AFT mortgages.

In April 1968, the United States was grieving. The Rev. Dr. Martin Luther King Jr. was assassinated by a white nationalist. Cities burned with riots.

Across the Atlantic, Britain was debating the Race Relations Act, which made it illegal to deny a person employment, housing or public services based on race or national origin.

The spring thaw is upon us, and parched western states will be watching closely as snows melt and rivers rise. Fancy satellites monitor water levels in the biggest rivers, but they don't spot the smaller streams and waterways that feed into them. Now, some Colorado scientists have hit on a new way of tracking those smaller streams — inspired, by Pokemon.

Within seconds, a bright, white flash erupted on the lower deck of West Delta 105 E, an oil-production platform positioned a dozen miles off the Louisiana coast. Disoriented, one crew member found himself 10 feet away from where he had been working before he blacked out. Another likened the impact to a sledgehammer blow to his head. A third told investigators he felt like he'd been hit by an 18-wheeler, his hard hat, glasses and earplugs knocked off in the blast.

In a congressional district that is considered as red as the sun is bright, Democrats see a tiny opening in an upcoming special election in Arizona after a surprising victory in a similar race last month in Pennsylvania.

Voters in Arizona's 8th Congressional District, northwest of Phoenix, are choosing a replacement for Trent Franks, who resigned abruptly last year amid sexual harassment allegations.

April is a hard month for Paula Reed - even though it has been for 19 years.

April 20 is the anniversary of the Columbine massacre. That day in 1999,two Littleton, Colo., high school students killed 12 students and one teacher before killing themselves.

Reed was a teacher at Columbine High School school that day, and still is today. This week, she spoke to NPR from the same classroom she was teaching in before everything happened.

Politics isn't always red or blue. Lately, it's all about green.

Senate Minority Leader Chuck Schumer, D-N.Y., plans to introduce legislation on Friday to decriminalize marijuana on the federal level, adding a high-profile advocate in the effort to decriminalize, legalize and normalize marijuana use in America.