Looking back, when we raced gleefully into the social media era, we probably should have given a little more thought to possible outcomes; like how it might impact our society, what it would mean for democracy, or why I would possibly care about seeing your vacation photos. Looking forward, we should probably be thinking long and hard about what it will mean to share the road with autonomous vehicles. But it turns out, we may not have that much time to think about it. "Right now, maybe 10,000 or 20,000 people have ever ridden in a self-driving car, in any context. Far fewer have been in a vehicle that is truly absent a driver. Up to a million people could have that experience every day in 2020." Alexis Madrigal in The Atlantic: If Waymo's timeline is correct, autonomous vehicles will transform urban life by 2020.

"During his decade as Slovakia's prime minister, Robert Fico flashed all the moves of the strongman autocrats now so in vogue the world over ... Then something extraordinary happened: An investigative reporter hot on the trail of Fico's finances was murdered, and tens of thousands of people in the once apathetic nation cared enough to take to the streets. Rather than be intimidated by the killing, journalists dug deeper. Grassroots opposition movements sprang from nowhere. Constitutional checks kicked in. Under pressure from all sides, Fico resigned." WaPo's Griff Witte with a remarkably important story for Europe and the world: How Slovakia stood up to a journalist's murder and kicked out its prime minister.

+ Things in Poland (and Europe in general) are a lot different from the days before WWII. But some things are a little too reminiscent, like these numbers from Pew: "Almost one-in-five Poles (18%) say they would not be willing to accept Jews as citizens of their country, and a similar share (20%) say they would not want Jewish neighbors. Nearly a third of Polish adults (30%) say they would not accept a Jewish person as a member of their family."

"The move continues an ongoing escalation of tit-for-tat between Moscow and the West that began in early March with the alleged poisoning of a former Russian double agent on British soil with a Soviet-designed nerve agent." WaPo: Russia to expel 60 U.S. diplomats, close St. Petersburg consulate.

"If confirmed, Dr. Jackson, a career Naval officer who has no real experience running a large bureaucracy, would inherit a set of challenges that have bedeviled Democratic and Republican administrations alike. The department, the federal government's second largest, has been burdened for years by aging infrastructure, an inefficient health care system and an unwieldy 360,000-person work force." David J. Shulkin is out at the Department of Veterans Affairs. And the White House doctor is in.

+ Shulkin is not going quietly: "They saw me as an obstacle to privatization who had to be removed. As I prepare to leave government, I am struck by a recurring thought: It should not be this hard to serve your country."

The president has taken to his favorite platform to attack one of his favorite targets. And the market has reacted to the Trump tweets about Amazon; tweets that are (wait for it...) not entirely accurate or fair. David Graham in The Atlantic: "The upshot is this: Trump is taking a position that is somewhat populist—a rare actual occurrence, even though the label is often applied to him. But because of his selective outrage, and his history of negative comments about Amazon CEO Jeff Bezos and The Washington Post, the newspaper Bezos owns, Trump's lashing out now reads as conflicted at best and bad faith at worst."

+ In what I'm sure is entirely unrelated news, President Trump fell more than 200 spots on Forbes Billionaires List. Jeff Bezos is number one.

"Today's diapers are small miracles of industrial science, the experts say. They are softer, thinner and longer lasting than ever before, not by accident, but because companies like Procter & Gamble and Kimberly-Clark have poured billions of dollars into research and development. Like tech companies, they've put a premium on transformative ideas." That's good news for your baby's bottom. But bad news for your bottom line. Especially if you're among the one in three families that can't afford diapers.

"Want to freak yourself out? I'm going to show just how much of your information the likes of Facebook and Google store about you without you even realizing it." Dylan Curran wanted to see how much data Facebook and Google had on him. So he took a look.

+ "I'm 57, with a 30-year-old wife, a fairly new hot water boiler, an old-style television, a petrol car and no kids. Actually, none of that is true. But that is what you might believe if you purchased access to my data from the world's largest information broker by market value." Tom Bergin in Reuters: How a data mining giant got me wrong.

+ Will Ferrell is the latest big name to say he's deleting his Facebook account. (We've been sharing freely for a couple decades. We might have to hold down the delete key that long to undo what's been done.)

"Those who moved more often, especially if they managed about an hour in total of physical activity over the course of the day, cut their mortality risk in half, the researchers found." Yes, you should get moving for at least 30-60 minutes a day. But, according to a new study, it doesn't matter if those minutes are all in a row. Gretchen Reynolds in the NYT: Those 2-Minute Walk Breaks? They Add Up.

"On reflection, in the spirit of Holy Week, I apologize for any upset or hurt my tweet caused him or any of the brave victims of Parkland." Laura Ingraham ripped Parkland's David Hogg on Twitter. He listed her show's advertisers. She apologized on Twitter. These kids don't play. CNBC: Advertisers – including TripAdvisor and Wayfair – are dumping Laura Ingraham after she slammed Parkland survivor.

It was the first pitch of the first game of the new baseball season. And it is gone. Oh, baseball, welcome back. We needed you.

+ Mental Floss: The Origins of All 30 MLB Team Names.

+ "In a paper published today in Scientific Reports, the team found that the only factor that seemed to make a difference to the type of sound generated was how much force is applied to the knuckle. What's more, according to their models, bubbles in the joints don't pop all the way. Instead, these pops are just partial, leaving some of tiny pockets of air intact." Quartz: Scientists have spent 60 years agonizing over how our knuckles crack.

+ A study at UC Riverside found that recycled wastewater tasted better than tap water. (The key is to brand it artisanal.)