The First Amendment secures the freedom of the press--the freedom of journalists to observe and report information without government interference. How those freedoms play out in actuality is a complex, hotly-debated issue. Are journalists really free to report information that opposes the most powerful? Do journalists have an obligation to society?
The First Amendment also declares that the people have the right to engage in protests and similar gatherings. What constitutes a peaceful protest is often up for debate, and is sometimes modified or defined by local or state laws.