Metal detectors installed outside Orlando's three major theme parks

How uneasy is the nation about terrorism and gun violence?

All three major theme parks in Orlando, Fla. — Walt Disney World, SeaWorld and Universal Studios — installed metal detectors at their front entrances Thursday.

Walt Disney World would not say how long its metal detectors would be in place, while SeaWorld said its installation is part of enhanced security during the holiday season. Universal Studios said it was testing the metal detectors.

"We continually review our comprehensive approach to security and are implementing additional security measures, as appropriate," Disney said in a statement.