Tourists walk in front of the Supreme Court building in Washington, March 24, 2013. In their first-ever review of same-sex marriage laws, the nine justices on the country's highest court are hearing arguments on Tuesday and Wednesday on one of the most politically charged dilemmas of the day, bound with themes of religion, sexuality and social custom. | (Photo: REUTERS/Jonathan Ernst)
The U.S. Supreme Court heard oral arguments in a free speech case involving a Pennsylvania high school student who was kicked off her cheerleading team over a profanity-laced Snapchat message, a case advocates say has free speech implications for all students.