This story goes under truth being stranger than fiction, the fiction being this book.
http://en.wikipedia.org/wiki/Little_Green_Men_(novel)
The true version being this documentary about a guy they really pulled the hoax on.
http://miragemen.com/
http://disinfo.com/2014/03/mirage-men-paul-bennewitz/
http://www.exopolitics.org/Dulce-Report.htm