Dana Roberson

Before the Orlando massacre, Omar Mateen showed signs of violence and mental illness. With guns easily accessible in America, how should we respond to potentially dangerous individuals?

A long-time boxing fan, actress Rosie Perez can often be found ringside — it's how she earned the nickname "The First Lady of Boxing." She remembers Muhammad Ali as he's laid to rest. 

Though the Vermont senator hasn't conceded yet, Bernie Sanders met with President Obama today at the White House to discuss next steps to unite the party.

Scientists with Microsoft say they can identify pancreatic cancer in internet users through their search engine queries. 

Mechanical engineering and heavy metal musician might seem like an unlikely combination, but Author & Punisher, a sonic and visual arts venture, has found a way to make both work.  

Many say the presidential nomination process is rigged to favor long-time party loyalists. But is that true? Jennifer Lawless, a professor of government at American University, answers.

Scientists announced yesterday that the water in Flint is finally safe for hand washing and bathing. But some residents say the water smells of bleach and is irritating to the skin.

Comedian Ali Wong says there is nothing funnier than a pregnant woman, and there is no shortage of good material. 

Seventy years ago, everyone feared the Nazis would get a nuclear weapon first.  A small band of Norwegian commandos embarked on a harrowing mission to sabotage Hitler's efforts.

DNC Chairwoman Debbie Wasserman Schultz says she isn't letting divisive party discourse distract her. But not everyone is as confident that she can unify her splintering party.

Jon Mitchell, author of the book "Chasing Agent Orange on Okinawa," says the chemical weapons in Okinawa have sickened U.S. service members and locals on the island.

Governor Dannel Malloy of Connecticut, and Ray Winans, a former gang member and founder of the program "Keeping Them Alive," weigh in on the national fight against gun violence.

Baltimore Officer Edward Nero was acquitted on all counts for his role in the death of 25-year-old Freddie Gray. 

Issues of trade, human rights, and reconciliation are all on the agenda. 

Alexander Van der Bellen was declared the winner after officials counted mail-in absentee ballots.

Audible boos and cries of "shame" could be heard from the chamber.

Beeline Reader is a new app that simplifies reading online, and the tool is generating a lot of buzz in the ADHD and dyslexic communities.

Venezuelan President Nicolás Maduro has declared a nationwide state of emergency, and many say the nation is headed for total political and economic meltdown.

For more than a decade, a community radio station in Kentucky has aired the program "Calls from Home," which broadcasts messages that families have left for incarcerated loved ones.

Nearly 1,500 international representatives are in Rwanda for the World Economic Forum on Africa. It is a show of success for a country that was ravaged by genocide in the 1990s.