VOICED : Spanish bull run comes to America

The video discusses the American Bull Run event in Petersburg, VA, inspired by the famous San Fermin festival in Pamplona, Spain. Participants paid $75 to join, unlike the free Spanish event. The bulls in the American version are not aggressive and lack sharpened horns but can run up to 35 miles per hour. Safety is a concern, requiring participants to sign a waiver acknowledging potential risks. Despite the dangers, many dream of running in Pamplona. The event also offers a tomato fight for those seeking less risky thrills. The final event is scheduled in Chicago in 2014.

What do participants have to sign before joining the event, and why is it necessary?

What alternative event is mentioned for thrill seekers who want action without danger?