Tinker (1969):  This is the leading case extending broad First Am. protection to student speech in public schools.  In anticipation of such
protests against the Vietnam War, a school district adopted a rule
that any student wearing an armband would be asked to remove it, and
if he refused he would be suspended.  Two days after the adoption of
this rule, Ds (three public high school students) wore armbands to
school in protest of the war and were suspended.  Ds sought an
injunction from being suspended.  Did the school rule violate Ds’
First Am. rights?