On Wednesday, the U.S. Supreme Court heard oral arguments in the final cases of the term, which began last October and is expected to end in late June after high-profile rulings on gay marriage, affirmative action and the Voting Rights Act.
Audio from Wednesday's arguments will be available at week's end at the court's website, but that's a relatively new development at an institution that has historically been somewhat shuttered from public view.
Former Arizona Rep. Gabrielle Giffords and her husband, Mark Kelly, at an April 16 ceremony naming a Capitol Hill conference room for her aide Gabe Zimmerman. Zimmerman died in the same Tucson, Ariz., shootings that Giffords wounded.
After the Senate failed to pass bipartisan legislation to expand background checks for gun purchases, the superPAC created by shooting victim and former Rep. Gabrielle Giffords and her husband, onetime astronaut Mark Kelly, vowed to remind voters of which lawmakers voted against the plan.
An oil sheen appears along the shore of the Kalamazoo River in August 2012. In July 2010, more than 800,000 gallons of tar sands oil entered Talmadge Creek and flowed into the Kalamazoo River, a Lake Michigan tributary. Heavy rains caused the river to overtop existing dams and carried oil 30 miles downstream.
Credit John W. Poole / NPR
John Bolenbaugh wades through thick mud in the Kalamazoo River in August 2012, looking for leftover traces of oil from the July 2010 spill from the Enbridge oil sands pipeline.
Up until now, pipelines that carry tar sands oil have been treated just like pipelines that carry any other oil. But the Environmental Protection Agency now says that should change. That's because when tar sands oil spills, it can be next to impossible to clean up.
The agency made this argument in its evaluation of the State Department's environmental review of the Keystone XL pipeline project, which, if approved, would carry heavy crude from Alberta, Canada, to refineries in the United States.
Bolivian President Evo Morales speaks last month at an event in La Paz to mark Sea Day, when the country lost access to the coast in a war with Chile more than 100 years ago. On Wednesday, Bolivia filed a lawsuit against Chile at the International Court of Justice to reclaim access to the Pacific Ocean.