They're a bfd.

photograph of an assembly of penguins headline right to assemble
Almost naked guys in paradeKu Klux Klan

The people have the right to "peaceably assemble."

Maybe you've seen some anti-war protesters, veterans, farm workers, immigrants, pro-life and pro-choice groups or consumers who are boycotting businesses.

A crowd chanting and carrying signs can have a powerful effect on public opinion, the media and lawmakers.

the First

Notice the word "peaceably."

When a crowd gets out of hand it becomes a mob. The safety of bystanders can be threatened and the police have a duty to maintain order and safety. Citizens aren't free to block streets or destroy private property. That's a no-no.

Authorities can require permits for large gatherings. But the Supreme Court has ruled they can't be used as an excuse to silence protests.

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There's a similar right that's not named in the Constitution. Courts have ruled that the "freedom of association" allows you to be a member of all kinds of organizations and groups and the government can't mess with you. So the Bob Marley Fan Club that meets in your garage - no problem, mon.