...or gifted young leaders stepping forward?

Telegenic and media-savvy is one way to describe David Hogg, a lean and dark-haired senior at Florida's Marjory Stoneman Douglas High School.

But maybe a better way is this: Change agent.

And what could be more sorely needed than a change agent right now? Because the mass shootings in America have become a horror of repetition in which meaningful change has come to seem impossible.

Enter Hogg. The 17-year-old is the school's student news director, who not only interviewed his fellow students during the horrific massacre at his school on Wednesday, but then spoke with passion to national media figures, providing footage that has now circled the globe.

In a level gaze directly into CNN's camera, Hogg called out politicians for their hapless dithering.

"We're children. You guys are the adults. ... Work together, come over your politics and get something done," Hogg said.

Hogg wasn't the only teenage survivor who demonstrated thoughtfulness and poise this week.

When CBS' Jeff Glor interviewed four Douglas High students on his evening news show Thursday night, their quiet strength was remarkable.

They didn't, of course, all have the same message. Two of the students Glor interviewed made the too-familiar case that it is too soon to be entering into political conversations. Another argued for greater gun control. One simply wanted to remind viewers to express love to their family and friends while they can.

But what ties them together is their command of the visual medium and their powerful composure amid the worst kind of tragedy.

This seems all the more notable because they are teenagers.

But, in fact, it's probably their very youth, and the all-digital world of social media — the water they've always swum in — that makes it possible.

This is the YouTube, the Instagram, the Snapchat generation.

Communicating immediately and effectively is second nature. Even in their pain and fear — no, especially in their pain and fear — they knew what to do.

"They showed not only a familiarity with social media but a remarkable ability to 'cover' the events happening in their own lives," David Clinch, global news editor at Storyful, told me.

That, Clinch said, "gives me some encouragement that this generation is not just able to understand and communicate about what is happening around them but is also putting themselves in a position to control the narrative and make a difference in their own futures." (Storyful vetted and verified the videos students were producing, many of which then went out into the larger media world.) In some cases, you could even see or hear Douglas students grappling with their own changing views in real time. "I don't even want to be behind a gun," one girl told a student journalist during the attack, according to The Washington Post. She said that, despite having rallied for gun rights in the past and having planned to go to a shooting range for her 18th birthday, she had changed her mind: "It's definitely eye-opening to the fact that we need more gun control in our country." Sen. Chris Murphy, D-Conn., an outspoken critic of congressional inaction on gun control, seemed to think the students could make a difference. "It's really tragic that one of the ways our movement grows stronger is by having more victims," he said, "but that is the reality." Of course, the status quo is so corrupted and intransigent that perhaps nothing that is said — including by the transcendent voices of these young survivors — will make a difference. This week, though, feels just a little different. The passion, intelligence and credibility of the Douglas High survivors is not going to go away.