During the "Public Diplomacy of the Americas" conference hosted by the USC Association of Public Diplomacy Scholars, former Mexican Ambassador to the U.S. Arturo Sarukhán discussed U.S.- Mexico relations, highlighting the importance of increasing the digital component of Mexico's diplomacy to deal with issues such as trade relations, transnational crime, and immigration.

For the past six months, I've been reporting on a documentary, "Where Were You: The Day JFK Died," marking the 50th anniversary of President Kennedy's assassination. Simultaneously I've been keeping a close watch on the coverage of the political gridlock, food fight, meltdown—pick your phrase—in Washington between President Obama and his political adversaries.

When Kazakhs meet for the first time, two key questions are all it takes to figure each other out: What part of the country are they from? And what horde and tribe are they? The answers immediately establish a person's roots, history, and allegiances -- a holdover of ancient tribal divisions that remain relevant in modern-day Kazakhstan.

In 2010, a French Ambassador posted in the Caucasus explained to me proudly that he was one of the first diplomats from the Quai d’Orsay to run a Facebook account. Two years later, the US Ambassador in Moscow, Michael McFaul, astonished the diplomatic community and Russia by engaging directly with the Russian population. With 55,000 followers on Twitter, he embodied the e-diplomacy revolution.

North Korea has long been shrouded in a haze of seclusion and mystery. But over the past year, the country has eased up on some of its restrictions by allowing visitors to carry phones and even access a 3G network. Associated Press photographer David Guttenfelder has been quick to take advantage of this unprecedented opportunity to disseminate information — and, of course, photos — from within North Korea’s borders.

Members of Mexico's drug cartels are really starting to harness the power of the internet, using it to run positive PR campaigns, post selfies with their pistols, and hunt down targets by tracking their movements on social media. Antoine Nouvet from the SecDev Foundation, a Canadian research organization, has been working with drug policy think-tank the Igarapé Institute on a project called the Open Empowerment Initiative.

One morning in June, the owners of the African restaurant La Mamma in Warsaw found ugly and offensive graffiti near its entrance. Someone in the Muranow neighborhood, the site of the former Jewish ghetto, apparently did not like the restaurant, which is a meeting place for Nigerian immigrants. To make sure the eatery’s owner got the message, the offender painted a black man hanging from a rope and added the words, “chocolate daddy.”

The grassroots campaign to break Saudi Arabia’s ban on female drivers isn’t set to start until Oct. 26. But a lot of women aren’t willing to wait that long. They’ve already recorded themselves getting behind the wheel in major Saudi cities. And although a few were stopped by police, many more have been inspired to take to the streets. Support has poured in from all over the world, and they now have an official song for their campaign.