Arizona January 29, 2015 6:00 pm WATCH: Keeping the Super Bowl Safe The party is in full swing at Super Bowl Central in Phoenix, Arizona, with a careful balance of celebration and security. US & World Videos 0:47 Stranded kite surfer rescued after spelling “help” with rocks 1:27 What are schools and states doing to reduce cellphone disruptions in US classrooms? 1:10 What is medetomidine? 2:23 Paris Olympics plug in to 100% green energy 0:33 2024 NBA Draft profile: Tidjane Salaun