And the backdrop to all these sights is the indelible image of a flag-draped coffin bearing the body of Representative John Lewis on his final trip—this one over a path strewn with rose petals—across the Edmund Pettus Bridge, in Selma, Alabama.

Lewis’s cortege recalled a scene from half a century ago—one that echoed strangely amid the alarms and cries of this haunted July.

On Sunday, March 7, 1965, Lewis and Hosea Williams led a peaceful crowd of some 600 marchers across the Edmund Pettus Bridge. It was a march for voting rights—but it also was a protest against police violence, in particular the police killing of a 26-year-old man, Jimmie Lee Jackson, who was beaten and then shot twice in the back during a voting-rights march on February 18 of that year.

The subsequent violence became known as “Bloody Sunday,” and the shock waves it sent across the country transformed the national debate about voting rights for Black Americans.

The words that echo in 2020 are “This is an unlawful assembly.” This summer, police in Oregon have been “declaring riots” almost every night. And Oregon is not even on the cutting edge: The mayor of one southern hamlet, Graham, North Carolina, recently “suspended” all protests, out of a professed fear that demonstrations against Confederate monuments would lead to violence.  Similarly, the troopers who brutalized the crowd of unarmed men, women, and children on Bloody Sunday saw themselves as enforcers of the law. But, textually, the words unlawful assembly embody a tension, even a contradiction—because the First Amendment, in its very terms, protects “the right of the people peaceably to assemble.” So “unlawful assembly” is like “illegal writing” or “forbidden religious exercise”: There surely may be such a thing, but, in each case, the burden has to be on the authorities to explain why this assembly, this writing, this religious exercise is an exception to the broad protection afforded to these important political rights.

By the logic of unlawful assembly, John Lewis had it coming. He and the marchers had gathered without permission. They had blocked a highway. Told to go home, they stayed. And violence followed. If you want to get technical, the marchers didn’t commit the violence—it was committed by the police and the local white toughs who hung around the fringes of the march. But the marchers had gathered in a place where the police didn’t want them. As one local white official explained to Martin Luther King Jr. in the aftermath of the march, “Everywhere you have been, there has been violence.”

Some scholars have argued recently that Americans have lost sight of “peaceable assembly” as an important constitutional right. One of them is Tabatha Abu El-Haj, a professor at the Drexel University Thomas R. Kline School of Law, whom I spoke with last week. Abu El-Haj has written extensively about the First Amendment and the right to assemble in particular, including a 2009 article called “The Neglected Right of Assembly.” Abu El-Haj explained to me that while England maintained a relatively tight leash on popular assemblies, the experience of the American Revolution convinced early Americans of the importance of “the people out of doors” as part of citizenship and political participation. Marches, open-air meetings, and protests were routinely held on public property during the 18th and 19th centuries. Not until 1914, in fact, did New York, by then a city of 2 million, even begin to require permits for these marches.

Of course, even in the heyday of the right to assemble, governments had the power to shut down riots. But the threshold for “reading the Riot Act” was the risk of serious violence—something equivalent to today’s Brandenburg test for incitement to crime. That formulation, announced by the Supreme Court in the 1950s, empowers the government to punish speech as incitement only when it is “directed to and likely to cause imminent lawless action.” By general agreement, lawless action means something more serious than jaywalking, peacefully blocking sidewalks and streets, or even cursing and taunting police.

In addition, Abu El-Haj said, crowds should not be declared “unlawful” unless they are violent and they refuse to disperse after a clear warning. She cited as examples the protests in Philadelphia in late May and early June, in which some marchers burned police vehicles and set fire to or looted stores. “That’s a different situation from much of what we have seen in the last few weeks—largely peaceful protests with violent behavior at the fringes,” sometimes by people who “are there to disrupt the protest,” she said.

Abu El-Haj’s words were echoed by John Inazu, a professor at the Washington University at St. Louis School of Law, who recently wrote an article decrying the overuse of unlawful-assembly laws as “social control.” Over time, he argued, local governments have lost sight of the idea that protest is presumptively protected, and have rewritten unlawful-assembly laws to permit the government to shut down even peaceful protests when they find them inconvenient. Last year in The Atlantic, Inazu noted:

Local officials too frequently end protests prematurely or move them to distant locations where they will be less effective. Lawmakers overregulate nonviolent groups that resist majoritarian norms. And many Americans cede too easily to the demands of conformity rather than pursuing and protecting alternative visions of society.

In an interview last week, Inazu told me that many local officials also pay no political or legal price for stopping protests prematurely. “The ability to overpolice or shut down the protests when they should be allowed to continue really advances the objectives of local government.”

Courts have done little to intervene in these choices, he said; there is “virtually no [legal] doctrine on the right of assembly.” Courts should require local governments to show that real disorder is imminent, rather than allowing premature shutdowns, he argued. “Local governments have to take some degree of risk” of disorder before eliminating protests, rather than using unlawful assembly as a phrase meaning “inconvenient.”

Clever, eh? If the government abuses you, go somewhere you won’t make the government mad. That idea, to my mind, stands the ideals of free speech and assembly on their head. The federal courthouse—where federal power is publicly displayed and exercised—is the kind of place where protests, by logic and history, are supposed to take place. When the people assemble in such a place, the government should not greet them right away with militarized threat of force. It should not ever remove them unless it has first made a serious effort to protect their right to be heard—and to separate the violent from the peaceable. And government officials, such as the president and the attorney general, should not be in the business of slandering and misrepresenting the majority of the peaceable.

Demands that protesters “denounce violence” also miss the point. Emerson Sykes, one of the American Civil Liberties Union attorneys challenging the protest ban in Graham, North Carolina, points out that the protests in America represent “a historic moment”—a challenge to ingrained brutality and racism in our police and justice systems. Protesters who themselves commit no crimes have the right to focus on that aim; ritual self-purification is an inappropriate demand—particularly in 2020. A government that itself cannot denounce neo-Nazis invading state capitals has no standing to demand that others apologize for the sins of third parties.

And that takes me back to Selma. It seems like distant history. Yet today, in America, people are in the street fighting for the very same things that the marchers on Bloody Sunday wanted—an end to police violence and free elections. The real scandal is that these basic values remain under siege more than half a century after blood ran on that Alabama bridge.