Nine drug companies issued an unusual pledge yesterday: They all agreed not to seek FDA authorization for a coronavirus vaccine until it is proven safe and effective. WSJ's Jared Hopkins explains what drove these vaccine rivals to unite behind the same message.

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The trading app Robinhood was founded with the goal of democratizing investing so that buying and selling stocks wasn't just for the wealthy. But does the app make it too easy? WSJ's Michael Wursthorn explains how the app has drawn scrutiny from financial and behavioral experts.

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WSJ's Erin Ailworth reported from Minneapolis in the days after George Floyd was killed. Recently, she went back to talk to people who knew Floyd and whose lives were forever changed by his death. Here's what she found.

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Protests have taken a deadly turn in the last two weeks and authorities say extremists are responsible. WSJ's Dan Frosch outlines the recent rise of extremism in America, and explains why experts predicted that this kind of violence would happen.

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New York City had been moving ahead with plans to bring students back to the classroom next week, over the objections of teachers. But this week, things changed. WSJ's Leslie Brody explains how a clash between the mayor and the teachers union altered the city's back-to-school plans.

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After months of preparation and planning, the fall college semester is here. But not all reopening plans are working. WSJ's Melissa Korn explains the disparate college plans to prevent Covid-19, and a student describes what it's like on a campus with an outbreak.

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In the middle of the NBA playoffs, one team staged an unprecedented boycott to protest police brutality. WSJ's Ben Cohen talks about the choice that shook not just the NBA but other sports and what it took to get the games going again.

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President Trump capped off the Republican convention with his acceptance speech last night. WSJ's Mike Bender dissects the case Republicans made for Trump's re-election and Emily Stephenson explains where the campaigns go from here.

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Dr. Angela Branche of the University of Rochester Medical Center is working to recruit Black participants for Covid-19 vaccine trials. She explains why the diversity of the trials may affect who trusts the vaccine once it comes out.

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Many businesses are requiring employees to get tested for Covid-19 in order to return to work. We speak with one small-business owner who routinely tests her workers about whether it has helped keep employees safe and what testing expenses have meant for her bottom line.

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