The latest battleground in America's culture wars is transgender access to school bathrooms and other facilities. We hear about sex discrimination, civil rights, boycotts and state lawsuits against the federal government.

Five years later, the "Arab Spring" is more often called the "Arab Uprising." Instead of producing new democracies, rebellions have led to renewed repression in some places and chaos in others. Nevertheless, it may be too soon to declare "failure."

Barack Obama is the first sitting US President to visit Hiroshima. He spoke with emotion as he acknowledged the role America played 70 years ago in dropping nuclear bombs first on Hiroshima and then, three days later, on Nagasaki. From the start, Obama has framed his purpose in this trip not as an apology, but rather, a reckoning with history.

Donald Trump clinched the Republican nomination today but, on the Democratic side, Bernie Sanders is not ready to concede to Hillary Clinton. We hear what the Party is doing to make peace and whether it's working.  

The hashtag "Never Trump" has lost its currency among traditional Republicans, and the Third Party alternative is dead in the water. Much faster than anybody predicted, some of Trump's most outspoken GOP critics are holding their noses and supporting the nominee.

The US, NATO and the United Nations are focused on ISIS in Iraq and Syria, while ISIS commits familiar atrocities in Libya. US Special Forces may be sent in, but with three rival governments, there's hardly a formula for easy success. 

President Obama has arrived in Hanoi and lifted America's long-time embargo on arms sales to Vietnam — this country's one-time enemy in a protracted war. We hear what it has to do with China. 

We update the latest developments in the Russian Olympic doping scandal, and the potential impact on this summer's games in Brazil. We hear from experts on anti-doping efforts and Olympic history, and an American athlete who might win a medal if her Russian opponent is disqualified.

Despite providing insurance to millions of people, Obamacare is no guarantee of access to healthcare itself. Doctors, hospitals — and now some insurance companies — are dropping out of the program. We hear about what's gone wrong and how it's fueling the presidential campaign.  

Now that he looks like the nominee, Donald Trump has stopped saying the Republican process is "rigged." But, as Bernie Sanders keeps winning states without closing the delegate gap, that's what his supporters are calling the Democratic process.