American officials say they believe Russia was behind the hacking of Democratic National Committee emails. The U.N. expresses caution about a Russian plan to allow civilians and unarmed rebels to leave Aleppo, Syria. And Turkey ramps up a crackdown on the media and military. A panel of journalists joins guest host Indira Lakshmanan for analysis of the week's top international news stories.

Updates from day three of the Democratic National Convention: President Obama and Vice President Biden make their case for Hillary Clinton. And the Clinton’s running mate Senator Tim Kaine debuts on the national stage.

American homes today are triple the size they were in the 1950s. And with more space has come more stuff. But a growing number of advocates say it is time to simplify. The lure of the minimalist lifestyle – and what it could mean for our health and happiness.

Many parents and therapists say obsessive internet use is a very real problem for some teens and children. But the term “internet addiction” is controversial and not officially recognized as a disorder. How to help kids who compulsively use computers and mobile technology.

An update on day two of the Democratic convention: Bill Clinton takes the stage and ongoing efforts by party leaders to build unity.

Historian Matthew Dallek looks at the history behind the Office of Civilian Defense, the country's first agency for homeland security, and the competing visions of those tasked with spearheading the department: New York City Mayor Fiorello La Guardia and First Lady Eleanor Roosevelt.

Opening night at the Democratic convention in Philadelphia. How speakers including Sen. Bernie Sanders, Sen. Elizabeth Warren and First Lady Michelle Obama seek to bridge party divides and build the case for presumptive nominee Hillary Clinton.

Forty-five years ago, the band “Earth, Wind and Fire” introduced audiences to a new kind of funk--one that fused soul, jazz, Latin and pop. Bassist Verdine White talks to guest host Derek McGinty about breaking racial boundaries in music and how the band is still evolving.

The Democratic National Convention gets underway in Philadelphia, where Hillary Clinton will accept the presidential nomination.

The Republican National Convention ends with a divided GOP. Hillary Clinton prepares to select her running mate. And Roger Ailes resigns from Fox News over sexual harassment allegations. A panel of journalists joins guest host Frank Sesno for analysis of the week's top international news stories.