Here’s a video from CNN about a security breach at 2 airports in the United States. A man was able to get over a fence and cross two runways before he was stopped by an airport worker.
Suggested ICAO level: 4+
Have a great weekend!!
http://www.cnn.com/video/data/2.0/video/bestoftv/2013/12/27/airport-security-breaches-field-newday.cnn.html