I think the 4th but I’m not 100% sure
<span>They were reacting to specific reports of evidence of Japanese espionage activity.
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The decisions they make later apply to every similar situation everywhere in the country. For example, there was a case in which students wanted to wear armbands protesting the war, but the school said that was disruptive. The Supreme Court sided with the student, and said they had a right to free speech as long as it wasn’t causing a material interruption. This case would later be the example on how to solve many cases regarding student’s freedom of speech.