The Brief

Secretary Kerry sits with German, Chinese, European Union, French, British, and Russian colleagues ahead of the negotiations with Iranian officials to discuss the terms of the new agreement on Iran's Nuclear Program in Lausanne, Switzerland, on March 31, 2015.

Iran Talks Extended

Iran and six world powers will pass the negotiators' self-imposed Tuesday night deadline over its nuclear program by at least a day. After 12 years of negotiations, Iranians feel that a peaceful resolution is at last within grasp, opening up the country to economic progress

Indiana Gov. Mike Pence Holds Press Conference

Indiana Gov. Responds to Critics

Mike Pence promised to "fix" a controversial new religious freedom law to clarify that it does not allow businesses to discriminate against gays

Nigerian Presidential Elections

Buhari Wins Nigeria Election

Nigerians voted President Goodluck Jonathan out of power Tuesday in a stunning upset, handing former military dictator Muhammadu Buhari the presidency

Comedy Central Defends Trevor Noah

"To judge him or his comedy based on a handful of jokes is unfair," Comedy Central said of new Daily Show host Trevor Noah, who came under fire for his tweets. "Trevor is a talented comedian with a bright future at Comedy Central"

A picture shows the logo of the online retailer Amazon dispalyed on computer screens.

Amazon Launches STEM Toy Shop

Amazon on Tuesday introduced a new online store focusing on STEM (Science, Technology, Engineering and Math) toys that help children develop valuable skills in in-demand fields. The top pick on the store’s front page was a child-friendly microscope

Coal plant

White House Plans to Cut Carbon Emissions by up to 28%

The White House reaffirmed a commitment to cut carbon emissions by up to 28% by 2025 in a Tuesday submission to the U.N. that promises new regulations on power plants, new fuel economy standards for some vehicles and rules to address methane emissions

Members of the Guinean Red Cross move the body of a person who died from the Ebola virus on March 8, 2015 at the Donka hospital in Conakry.

Ebola Cases Top 25,000

As of Tuesday, the outbreak, which has persisted for more than a year, has infected 25,178 people and killed 10,445, according to new numbers released by the World Health Organization (WHO)

ice-hockey player

Hockey Helmets May Not Prevent Concussions, Study Shows

Researchers say the sport with the highest rate of concussions suffers from a dearth of effective safety helmets. Price appeared to have no effect on performance, with helmets priced at $100 outperforming helmets at triple the price

Former U.S. Secretary of State Hillary Clinton takes part in a roundtable discussion in Washington, DC, on March 23, 2015.

Hillary Also Used iPad Despite Claims of Single Device

Hillary Clinton emailed her staff on an iPad as well as a BlackBerry while secretary of state, despite her explanation she exclusively used a personal email address on a homebrew server so that she could carry a single device, according to new documents