I wish I could go. For those interested in going, here are the rules for visitors.
All oral arguments are open to the public, but seating is limited and on a first-come, first-seated basis. Before a session begins, two lines form on the plaza in front of the building. One is for those who wish to attend an entire argument, and the other, a three-minute line, is for those who wish to observe the Court in session only briefly. Please do not hold a space in either line for others who have not yet arrived.
Seating for the first argument begins at 9:30 a.m. and seating for the three-minute line begins at 10 a.m. The locations for these lines are marked with signs and there is a police officer on duty to answer your questions.
Visitors should be aware that cases may attract large crowds, with lines forming before the building opens. Obviously there are unavoidable delays associated with processing and seating large numbers of visitors, and your cooperation and patience are appreciated. Court police officers will make every effort to inform you as soon as possible whether you can expect to secure a seat in the Courtroom.
# # #
They have lockers for your electronic devices (electronic devices are prohibited in the court.) And leave your weapons at home.