USAF high-power beam aircraft
Sensor
Anti Foreign Object Debris (FOD) contraption tested by the FAA
New sensors set up to prevent from FODs on the tarmac are being tested by the FAA (Federal Aviation Administration):
http://www.nytimes.com/2008/05/23/business/23runway.html?_r=1&oref=slogin
Taken from The New York Times: http://www.nytimes.com