This day in theme parks, August 18th: Uni Social 2010 More Updates – A look “behind the screams” and a few more developments…. http://www.halloweenhorrornights.com #HHN — Universal Orlando Resort (@UniversalORL) August 18, 2010 2011 Here’s another horrifying look at this year’s event. And you thought your holidays were killer. http://t.co/s1vIXeh […]