to the troops, with an average of 18 tickets for each one, enough for half of the Scouts to attend. The tickets instructed the Scouts to attend in patrols of 9, and each were good for one showing. The show was presented every 20 minutes but lasted over an hour. Each presentation of the program had three groups of four patrols of 9 Scouts each, that is, 108 people. No-shows were filled in with Scouts from a standby line. After doubling the amount of money spent on the jamboree, The Mysterium Compass cost over $1,000,000 to produce and had a staff of just above 300. It was closed to anyone over 18. Participants who completed the show were given a medallion for their jamboree emblem patches. Arena shows The 2010 National Scout Jamboree featured two arena shows: one on July 28, and another one was held on July 31. Both arena shows featured Chief Scout Executive Bob Mazzuca. The first arena show featured several celebrities, including Sgt. Slaughter, Miss America Caressa Cameron, and Secretary of Defense Robert Gates. The main arena show featured Mike Rowe, host of Discovery Channel's Dirty Jobs, and musical performances by Alex Boyé, Honor Society and Switchfoot. The show ended with the largest fireworks display ever performed on a military base or at a national Scout jamboree. There was some controversy over President Obama not appearing, as he had chosen to pre-record his appearance on The View that day - instead leaving a video message congratulating the Boy Scouts of America on their centennial. (unconfirmed that taping the VIEW excluded him from the 10 day event. please source.) At the 2005 jamboree, there were problems with a water shortage during the first arena show. This was not repeated in the second show or in those at the 2010 jamboree. Cases of water bottles were distributed everywhere on the arena seating area, with large stacks at the sides, back, and along the roads to the arena. In total, approximate three-quarters of a million bottles of water were placed in the arena during the 2010 National Scout Jamboree - in order to more effectively combat the risk of dehydration. On the way back to their camps from the second arena show after dark, some participants without flashlights had trouble avoiding running into extra cases of water bottles as they lay on the ground and the roads. A few