The Democratic People’s Republic of Korea is the very archetype of a “closed society.” It ranks dead last—196th out of 196 countries—in Freedom House’s Freedom of the Press index. Unlike the citizens of, say, Tunisia or Egypt, to name two countries whose populations recently tapped the power of social media to help upend the existing political order, few North Koreans have access to Twitter, Facebook, or YouTube. In fact, except for a tiny elite, the DPRK’s 25 million inhabitants are not connected to the Internet. Televisions are set to receive only government stations. International radio signals are routinely jammed, and electricity is unreliable. Freestanding radios are illegal. But every North Korean household and business is outfitted with a government-controlled radio hardwired to a central station. The speaker comes with a volume control, but no off switch. In a new media age awash in universally shared information—an age of planet-wide instant messaging and texted manifestos

He's an Indian, and Brazilian officials have concluded that he's the last survivor of an uncontacted tribe. They first became aware of his existence nearly 15 years ago and for a decade launched numerous expeditions to track him, to ensure his safety, and to try to establish peaceful contact with him. In 2007, with ranching and logging closing in quickly on all sides, government officials declared a 31-square-mile area around him off-limits to trespassing and development. Advertisement

It's meant to be a safe zone. He's still in there. Alone.

History offers few examples of people who can rival his solitude in terms of duration and degree. The one that comes closest is the "Lone Woman of San Nicolas"—an Indian woman first spotted by an otter hunter in 1853, completely alone on an island off the coast of California. Catholic priests who sent a boat to fetch her determined that she had been alone for as long as 18 years, the last survivor of her tribe. But the details of her survival we