Watch as panicked passengers run for cover after an explosion at the terminal security checkpoint at the Orlando International Airport. A TSA agent quickly reacts and grabs the bag. The explosion, it turns out, was from a battery. Some people flying breached security by ducking for cover inside security gates. It caused delays and cancellations for hours, as the TSA rescreened 5,000 passengers. InsideEdition.com's Leigh Scheps (http://twitter.com/LeighTVReporter) has more.